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Department of Biology Resources + Information: biology.colostate.edu/resources-guidelines/

Events, Dates, + Deadlines: biology.colostate.edu/dates-deadlines/

Main Office Contact Information: Monday – Friday | 7:30am – 4:30pm | CNS-Bio_Info@colostate.edu | 970-491-7011

Spring 2026 Office Hours: January 5th – May 15th | Monday – Friday | 8:30am – 4:00pm

Spring 2026 ASC Drop In Hours: January 26th – May 15th | Monday – Thursday | 1:00pm – 3:00pm

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CSU Biology students explore marine science and dolphin physiology in Roatán, Honduras—where hands-on research meets international impact.
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Welcome to the

Department of Biology at Colorado State University

Our internationally-recognized research and education programs focus on organisms, diving into mechanistic detail about how they work, or stepping back to consider how they interact with each other and with their environment.  From cells to the biosphere, we make discoveries about fundamental questions in Biology, and we use this new knowledge to make the world a better place.  CSU Biology is a place where everyone is welcome to indulge their curiosity about the living world.

About Biology
Employment
Seminars
Future Students

Office Hours

Green‑themed graphic with grass photo as the background displaying Colorado State University Biology Department Spring 2026 office hours for the main office in Biology Room 111, open Monday through Friday from 8:30 a.m. to 4:00 p.m. January 20 through May 15, with drop‑in advising available Mondays through Thursdays from 1:00 to 3:00 p.m. and contact information included.

Student Highlights

A Day in the Life

A Day in the Life of Biology Student An-Ping Yu

NatGeo's “Science Fair: The Series”

Marissa Martinez’s stay-curious energy earned her a feature in @natgeotv’s new show, “Science Fair: The Series,” and propelled her all the way to the International Science and Engineering Fair, securing her a full-ride scholarship through the @boettcherfdn to study biology right here at @CSUNaturalSciences 📚🥼

Catch #ScienceFairTheSeries on @hulu and @disneyplus, out now 📺 👀

The trailer | The story | The feature

Marissa Martinez - NatGeo's "Science Fair: The Series"

SOURCE Articles

“Biology graduate student promotes importance of self in lab”

by Allie Ruckman, featuring Mel Morado

Photo of Mel Morado in a Colorado State sweatshirt sitting in the lounge in the Biology building

“Recognizing and addressing oppression in the sciences”

by Allie Ruckman, featuring Marina Rodriguez, Amir Alayoubi, and Beth Wittmann

From left to right, photo of Marina Rodriguez, Amir Alayoubi, and Beth Wittmann posing for a photo in a lab

“Q&A with Boettcher Scholar and International Science and Engineering Fair participant”

by Allie Ruckman, featuring Marissa Martinez

Photo of Marissa Martinez standing beside her poster "A Habitat Assessment Protocol to Determine Suitability for Southwestern Willow Flycatcher Occupancy in the Northern Rio Grande Watershed"

“Amphibian Week Highlights Critical Conservation Research at CSU”

by Elizabeth Rylance, featuring grad student, Katherine Stroh, & Biology professors, Chris Funk, and Rachel Mueller

Field researchers collecting amphibian samples near Sprague Lake in a tall grassy meadow with pine and fir trees surrounding

Program Highlights

The Biology Teaching Collections

The Department of Biology houses the Biology Teaching Collections. The program maintains a large collection of specimens that we use in our classes. There are over 13,000 specimens, including birds, mammals, reptiles, amphibians, representatives of most invertebrate groups, and plants of all kinds. This collection has been an important part of instruction for the past century and is being reorganized to help better serve this purpose through volunteers.

Interested in volunteering or seeing the collections? Contact Tanya Dewey (tdewey@rams.colostate.edu) or Jennifer Brady (jbrady94@rams.colostate.edu) for more information on getting involved. This program showcases the amazing volunteers, graduate students and professors who are part of keeping this collection thriving. Joining as a volunteer includes learning what we do to keep this place running while also discussing what the collections are all about.

Engage with the Biology Teaching Collections

Watch this video to learn more about our Teaching Collections!

Video Credits

Music: Summer Somewhere In Cuba | Artist: Cumbia Deli | Videography: CSU Natural Sciences | YouTube: col.st/Ywk5i

Course Highlights

Summer 2026

  • Promotional graphic for “Summer Session 2026 Biology Courses” from Colorado State University’s Biology Department. The left side features a green box with QR codes and text encouraging students to schedule an appointment with an Academic Success Coordinator and to visit the Office of the Registrar for more course information. Behind the box is a campus photo showing students walking across the CSU pedestrian bridge. The right side lists available Summer 2026 biology courses, including online, on‑campus, field, and study abroad options such as Humans and Other Animals, Principles of Animal Biology, Vertebrates, Introduction to Evolution, Plant Identification, Animal Behavior, Cell Biology, Developmental Biology, Mycology, Biology Field Practicum, Tropical Ecology, Molecular and General Genetics, Marine Biology, and several study abroad courses in Honduras, Kenya, Madagascar, and more. CSU Biology and Colorado State University logos appear at the bottom left. The design features orange and green branding elements.
  • A stylized illustrated background of a science laboratory filled with glass bottles, jars, and equipment in muted pastel colors. Overlaid text displays Colorado State University’s Biology department logo and describes the course “LIFE 102: Attributes of Living Systems.” Sections include a course description about introductory biology topics, a details box listing lecture and lab schedules for Summer 2026, and contact information for two instructors. Decorative illustrated plant leaves frame parts of the text.
  • A promotional graphic for a Colorado State University biology course titled “LIFE 103: Biology of Organisms.” The left side shows a close-up photo of a small gray rodent with large ears perched on thin branches surrounded by green foliage. Beneath it is a green box labeled “Course Description,” explaining that the course explores organismal diversity and includes a lab requirement. The right side shows dense green ferns as a background with course details: Summer 2026 dates, four credits, CRNs, and lecture/lab times. Instructor contact information is listed. At the bottom is the CSU Biology logo.
  • A course flyer for “LIFE 320: Ecology” at Colorado State University. The design includes multiple nature photographs: sunlit green leaves, a forest with tall tree trunks, a landscape of a winding river bordered by agricultural fields, and small sprouting plants with dew. Overlaid text provides course information for Summer 2026, including meeting times, instructor name and email, and a detailed course description about ecological systems and processes. The CSU Biology logo appears in the bottom right corner.
  • Promotional flyer for BZ214: Vertebrates, a 4-credit course offered during Summer 2026 at Colorado State University. The course examines the evolution of anatomical, morphological, physiological, and ecological traits of vertebrate animals, providing advanced training in ichthyology, herpetology, ornithology, and mammalogy. Includes a dissection-based lab for exploring external and internal anatomy of vertebrate classes. Lecture held in BIO 134 and lab in BIO 106 from June 15 to August 9, with lecture times MTWR 10:00–11:15 AM and lab times TR 1:30–4:20 PM. Instructor: Shane Kanatous, contact at Shane.Kanatous@colostate.edu. The design features images of a tree frog and a bighorn sheep, surrounded by decorative leaves, with the Biology department logo at the bottom left corner.
  • Promotional flyer for BZ220: Introduction to Evolution, a 3-credit online course offered during Summer 2026 at Colorado State University. The course explores fundamental concepts in evolutionary biology, including mechanisms of evolution, speciation, biodiversity, evolutionary hypotheses, and development of evolutionary concepts. Prerequisites include various biology and math courses. The course runs from June 15 to August 9 in an asynchronous format. Instructor: Zach Grochau-Wright, contact at z.grochau-wright@colostate.edu. The design features illustrations of insects, birds, and plants, with the Biology department logo at the top right corner.
  • Promotional image for BZ 223: Plant Identification, a Summer 2026 online course offered by Colorado State University. The background features close-up green leaves. The course description reads: "Students will learn identification and relationships of flowering plants. With the ecological and environmental issues we are facing as a society, plant identification skills are more important than ever. Learn how to identify flowering plants in a way that will serve you no matter where you live or work in the future." The course is worth 3 credits and requires BZ120 or LIFE103 as prerequisites. It will be offered online and asynchronously during the first 4-week session from May 18th to June 14th. The instructor is Erica Sokoloski, who can be contacted at ericasm@colostate.edu. The Colorado State University Biology logo appears in the bottom left corner of the image.
  • This promotional graphic highlights BZ300: Animal Behavior, a summer 2026 course at Colorado State University. The background features an underwater scene with schools of fish and floating bubbles, creating a marine-inspired aesthetic. The bold title "BZ300 Animal Behavior" is paired with course details, including dates (May 18th–June 14th), credit hours (3), prerequisites (BZ220), and in-person class times (MTWR, 8:00 AM–10:30 AM in AZ E112). The course description emphasizes evolutionary and mechanistic approaches to understanding animal behavior, exploring connections between brain function, genes, hormones, ecology, and evolution. Instructor contact information for Dhruba Naug is provided. The CSU Biology logo appears in the top-right corner.
  • Promotional flyer for BZ310: Cell Biology, a 4-credit course offered during Summer 2026 at Colorado State University. The course runs from June 15 to August 9 and examines cellular structure and function, focusing on molecular mechanisms of communication, metabolism, movement, genetic regulation, growth, and reproduction. Students will integrate foundational theory with hands-on laboratory work to build competency in modern cell biology. Lecture takes place MTRF from 1:00 PM to 2:20 PM in BIO 134, and lab occurs TR from 2:30 PM to 5:20 PM in Yates 303. Prerequisites include BZ110, BZ111, LIFE102, or CHEM113. Instructors: Salah Abdel-Ghany (lecture) at Salah.Abdel-Ghany@colostate.edu and Alpana Damle (lab) at Alpana.Damle@colostate.edu. The design features vibrant green microscopic images of plant cells and the Biology department logo at the bottom right corner.
  • Promotional flyer for BZ311: Developmental Biology, a 4-credit course offered during Summer 2026 at Colorado State University. The course runs from June 15 to August 9 and investigates cellular and molecular mechanisms regulating animal and plant development. Topics include fertilization, cleavage, gastrulation, axis specification, organogenesis, morphogens, patterning, and stem cells. Laboratory sessions focus on experimental manipulations of invertebrate and vertebrate embryos and include student-designed research projects. Lecture is online, and lab is in-person every Wednesday from 10:30 AM to 1:50 PM in Yates 211. Instructors: Michael Shavlik (lecture) at Michael.Shavlik@colostate.edu and Alpana Damle (lab) at Alpana.Damle@colostate.edu. The design features a blue-purple background with scientific imagery, including a glass tubes and molecular structures.
  • A colorful flyer showcasing BZ333: Mycology for Summer 2026. The title, “Explore Mycology,” is displayed prominently with vibrant imagery of fungi, including a close-up of a colorful mushroom, fungal spores, and mycorrhizal networks. The flyer highlights course details: lecture times (MW 10:00 AM – 11:50 AM), lab times (MW 1:00 PM – 4:50 PM), and location Bio 128, with a hybrid format combining face-to-face and online learning. The course focuses on exploring the fungal kingdom, culturing fungi, and staining mycorrhizae in plant roots. Contact information for Dr. Ami Wangeline is provided, along with a QR code for additional course details.
  • A visually engaging flyer for BZ340: Field Mammalogy in Summer 2026. The background features a map of Colorado overlaid with paw prints, and the main image shows students interacting with a small mammal during fieldwork. The course description emphasizes learning field research design and techniques for studying wild mammals, including team-based independent research. The format includes both on-campus and field-based learning, with a week at the CSU Mountain Campus. Details include the first class time (Monday, 9–10 AM), location (Bio 104), and contact for Tanya Dewey. A QR code is included for course highlights.
  • A stunning flyer for BZ415: Marine Biology in Summer 2026, featuring images of marine life, including dolphins, coral reefs, seals, and penguins. The background showcases an icy ocean landscape, reflecting the course’s focus on marine ecosystems. The description highlights the integration of marine organisms and their environments, emphasizing the importance of marine ecosystems to life on Earth. Students will engage in lectures, discussions, and a final presentation on research or public service topics. Details include the lecture format (online and in-person) and recitation time (Thursdays, 12:00–12:50 PM, Bio 133). Contact information for Dr. Shane Kanatous is provided alongside a QR code for more details.

Course Snapshots

LIFE 102 – Attributes of Living Systems

This course is an introductory biology course that works well for both incoming Freshmen and outgoing Seniors. It not only provides a basis for more-advanced courses in life sciences, but also serves as an effective review for more-advanced students.

LIFE 103 – Biology of Organisms

This course introduces students to the incredible diversity of life, from microbes to mammals. It’s a great fit for anyone needing a solid foundation in organismal biology, whether you’re just starting out or preparing for upper‑division biology courses. Students explore how organisms function, adapt, and interact with their environments through both lecture and hands‑on lab work.

LIFE 320 – Ecology

This course offers a deep look at how organisms interact with each other and their environments, making it ideal for students interested in environmental science, conservation, or biological research. Through key ecological concepts and real‑world examples, students gain the tools to understand and analyze ecological patterns across multiple scales. It’s a strong next step after introductory biology courses for anyone wanting a more integrated view of the natural world.

BZ214 – Vertebrates

Gain insight into the evolution of anatomical, physiological, and ecological traits in vertebrate animals. The course features a dissection-based lab and serves as a foundation for advanced training in ichthyology, herpetology, ornithology, and mammalogy.

BZ220 – Introduction to Evolution

Students will explore fundamental concepts in evolutionary biology, including mechanisms of evolution, patterns of speciation, and biodiversity. The course provides a strong foundation for advanced studies in biology or ecology.

BZ223 – Plant Identification

With the ecological and environmental issues we are facing as a society, plant Identification skills are more important than ever. Learn how to identify flowering plants in a way that will serve you no matter where you live/work in the future!

BZ300 – Animal Behavior

Explore the fascinating world of animal behavior through evolutionary and mechanistic approaches. Investigate how and why animals behave as they do, linking behavior to brain function, genetics, hormones, and ecology. This integrative course provides a strong foundation for understanding the functional and evolutionary basis of behavior.

BZ310 – Cell Biology

Dive into the structure and function of cells, with an emphasis on molecular mechanisms driving communication, metabolism, and genetic regulation. Foundational theory and hands-on laboratory work prepare students for advanced studies in modern cell biology.

BZ311 – Developmental Biology

The details of life are important. Join us in developmental biology, where we discuss how organisms form.

BZ333 – Mycology

Dive into the fascinating world of fungi! Students will explore the diversity, ecology, and evolution of the fungal kingdom. Learn to isolate and culture fungi, stain mycorrhizae in plant roots, and uncover the critical roles fungi play in ecosystems. This hybrid course combines hands-on lab work and engaging lectures to provide a comprehensive understanding of mycology.

BZ340 – Field Mammalogy

Immerse yourself in the study of wild mammals, where students will learn field research techniques and explore mammalian ecology. This course includes hands-on research, team-based projects, and a week-long residency at the CSU Mountain Campus. Perfect for students passionate about wildlife and fieldwork, this course offers a unique opportunity to study mammals in their natural habitats.

BZ350-401 – Molecular & General Genetics

Because this course is online and asynchronous, it is a great option for students who have a summer job or internship and can’t take an in person class.

BZ415 – Marine Biology

Explore the vast diversity of marine life, from microscopic organisms to the largest creatures in the ocean. This upper-level course examines the relationships between marine organisms and their environments, highlighting the importance of marine ecosystems to life on Earth. Students will engage in lectures, discussions, and a final research or public service presentation in this hybrid course.

Spring 2026

  • Promotional flyer for Colorado State University's Spring Session 2026 Biology Courses. The background is green with a blurred floral image. The CSU logo appears in the top left corner alongside the title "CSU Spring Session 2026 Biology Courses*". Two QR codes are included with text encouraging students to schedule an appointment with their Academic Success Coordinator and visit the Office of the Registrar. A note at the bottom advises students to check RAMweb for updated course offerings. The flyer lists various biology courses.
  • Colorado State University Biology Department flyer promoting BZ192: First Year Seminar for Spring 2026. The flyer features three images of students engaged in biology activities: examining specimens in a lab, collaborating at a table with laptops and notes, and holding a small animal. Text highlights course details: “BZ192 First Year Seminar, Spring 2026, 1 Credit, Section 002, CRN 25279, Tuesdays 1–1:50 PM, BIO 133.” The course description explains that the seminar introduces careers in biology and zoology, provides resources for success in the BZ major, and helps navigate the Biological Sciences/Zoology curriculum. Instructor information: Erik Arthun, email Erik.Arthun@colostate.edu. Design uses purple and orange tones with geometric patterns and the CSU Biology logo at the top.
  • Flyer for CSU course “LIFE 320: Ecology,” Spring 2026, 3 credits. Examines ecological systems, population dynamics, community interactions, and ecosystem processes using models and quantitative approaches. Two sections: T/Th 8:00–9:15 AM (Nutrien 140) and MWF 2:00–2:50 PM (Biology 136).
  • Flyer for CSU course “BZ240 Synthetic Biology,” Spring 2026, 3 credits, prerequisite LIFE 102. Description highlights convergence of biology, chemistry, computer science, and engineering to understand life processes and ethical issues. Topics include gene drives, engineered materials, genome editing (CRISPR), extinction reversal, cancer therapies, and ethics. Class meets T/Th 2:00–3:15 PM, Yates 206. Contact: Dr. Chad Ternes.
  • Promotional graphic for Colorado State University course BZ311 “Developmental Biology.” Background shows molecular structures in blue and purple tones. Text includes course details: Spring 2026, 4 credits, in-person, BHSCI 131, Monday/Wednesday/Friday, 8:00–8:50 AM. Instructor: Michael Shavlik, Michael.Shavlik@colostate.edu. Description highlights cellular and molecular mechanisms of animal and plant development, including fertilization, cleavage, gastrulation, organogenesis, and stem cells, with lab projects on embryo manipulation.
  • Promotional graphic for Colorado State University course BZ320 titled “Biogeographic Approaches to Conservation.” The background features a colorful satellite image of Earth with geographic outlines and data overlays. Text includes course details: Spring 2026, 3 credits, in-person, Monday/Wednesday/Friday, 12:00–12:50 PM, Micro A108. Instructor contact: Tanya Dewey, Tanya.Dewey@colostate.edu, Biology 404. Description explains the course covers conservation biogeography, phylogeographic approaches, ecological niche modeling, and geospatial analysis.
  • Flyer for BZ390: Biology of Sex at Colorado State University, offered Spring 2026. The flyer includes course details such as meeting times (Tuesdays and Thursdays, 2:00–3:15 pm in Yates 208), prerequisites (BZ220 Evolution), and credit hours (3). It features a course description focused on the biology of sex through evolutionary, physiological, and behavioral perspectives. Contact information for Dr. Kathryn Wilsterman (kwilist@rams.colostate.edu) is provided. The background is dark blue with colorful prismatic light streaks.
  • Course flyer for "BZ401: Comparative Animal Physiology" at Colorado State University, Spring 2026. Shows a bird in flight against a blue sky. Lists prerequisites (BZ220), schedule (Tues/Thurs 11:00 AM–12:15 PM in Behavioral Sciences 103), and instructors (Dr. Kathryn Wilsterman and Dr. Cory Williams). Describes course focus on physiological mechanisms in vertebrates and invertebrates including digestion, metabolism, and respiration.
  • Course flyer for "BZ414: Vertebrate Climate Change Responses" at Colorado State University, Spring 2026. Features polar bears on an icy landscape. Includes course details such as prerequisites (BZ110, BZ111, LIFE 102, LIFE 103, or sophomore standing), schedule (Tues/Thurs 4:00–5:15 PM in Yates 206), and instructor contact (Dr. Cory Williams). Highlights topics like climate change effects on polar bears, bird migration, and mammalian hibernation.
  • Promotional graphic for Colorado State University course BZ415 “Marine Biology.” Background shows icy ocean scenery with marine life photos on the right, including a dolphin, coral reef, seal, and penguin. Text includes course details: Spring 2026, 4 credits, prerequisite Ecology, in-person, BSB107, lecture Tuesday/Thursday 2:00–3:15 PM, recitation Thursday 3:20–4:10 PM. Instructor: Shane Kanatous, Shane.Kanatous@colostate.edu. Description highlights integration of marine organisms from microscopic to large scale, their environments, and the importance of marine ecosystems to life on Earth.
  • Promotional graphic for Colorado State University courses BZ424/520 titled “Principles of Systematic Science and Advanced Systematics.” Background shows a circular phylogenetic tree diagram with green tones and hexagonal patterns. Text includes course details: Spring 2026, 3 credits, prerequisite BZ220, in-person, Monday/Wednesday/Friday, 8:00–8:50 AM, A/Z E112. Instructor contact: Tanya Dewey, Tanya.Dewey@colostate.edu. Description highlights systematic science, phylogenetic tree building, evolutionary relationships, and use of GenBank data.
  • Promotional graphic for Colorado State University course BZ440 titled “Plant Physiology.” Background features a close-up of a green leaf and a small plant sprouting from soil. Text includes course details: Spring 2026, 3 credits, prerequisite general biology or equivalent, in-person, Biology 136, Monday/Wednesday/Friday, 10:00–10:50 AM. Instructor contact: Salah Abdel-Ghany, Salah.Abdel-Ghany@colostate.edu. Description explains plant physiological processes, crop yield improvement, and responses to environmental stress.
  • Promotional graphic for Colorado State University course BZ441 titled “Plant Physiology Lab.” Background includes green plant leaves and a bright natural setting. Text includes course details: Spring 2026, 2 credits, prerequisite/corequisite BZ440, in-person, Biology 128, Thursday lab 1:00–2:40 PM, recitation 3:00–3:50 PM. Instructor contact: Salah Abdel-Ghany, Salah.Abdel-Ghany@colostate.edu. Description covers lab activities on photosynthesis, water relations, crop biotechnology, hydroponics, and genetic engineering.
  • Flyer for CSU online course “BZ479 Biology & Behavior of Dogs,” Spring 2026, 3 credits. Focus on physiology, development, genetics, and behavior of domestic dogs, including evolution, domestication, and selective breeding. Asynchronous format, Jan–May. Instructor: Dr. Jennie Willis.
  • Colorado State University course flyer for “BZ 480A4: Service Dog Training for On-Campus Work.” Blue gradient background with course details: 2 credits, Spring 2026, lab Mondays 3:00–3:50 PM in Biology 136, lecture online, CRNs 75989 and 75984, contact jennie.willis@colostate.edu. Description highlights training service dogs for campus work, covering public access, safety, and emotional wellbeing. Right side shows a brown and black dog lying under a desk, wearing a collar with an orange tag, next to an office chair.
  • Promotional graphic for Colorado State University course “BZ 480A8, Biotech for the Industry, Curious.” The background features green paintbrush strokes with text in white, yellow, and neon green. The header includes the course code and title, followed by “Spring 2026, 3 Credits” and prerequisites: BZ310 or LIFE210, Junior Standing. The course description explains that biology-focused students will explore biotech careers, applied biological innovations, marketable skills, and the successes and failures of biotech. On the right, a “Details” section lists: Days, Tuesday and Thursday; Time, 2:00 PM to 3:15 PM; Location, Bio 133, In-Person. Below is a “Contact” section with Dr. Devin O’Connor’s email (Devin.OConnor@colostate.edu). An AI-generated image collage shows a microscope, a DNA double helix, a CRISPR patent document, and tubes labeled with proteins and enzymes. The Colorado State University Biology logo appears in the top right corner.
  • Flyer for Colorado State University online course “BZ541 Hemp Biology,” offered Spring 2026. Includes course description about cannabis plant biology and interpreting scientific literature. Topics listed: evolution and uses of cannabis, plant anatomy, propagation, medical cannabis, endocannabinoid system, genetics, breeding, pests, and sustainability. Instructor: Amanda Broz. QR code for registration.
  • Promotional graphic for a Colorado State University Biology course titled “BZ692A.003: The Distracted Student and What to Do About It.” The design features a modern classroom setting with desks and laptops, overlaid with green and white panels highlighting course information. The layout includes a section labeled “What You’ll Learn” with a course description and details about expectations, audience, and format. The CSU Biology logo appears at the bottom, and the overall design uses a clean, professional style with green accents and subtle background imagery of a classroom environment.

Course Snapshots

LIFE 102 – Attributes of Living Systems

This course is an introductory biology course that works well for both incoming Freshmen and outgoing Seniors. It not only provides a basis for more-advanced courses in life sciences, but also serves as an effective review for more-advanced students.

BZ192 – First Year Seminar

Embark on an exciting journey into the life sciences with this dynamic course, it’s your chance to explore biology and zoology like never before! Connect with passionate faculty mentors, dive into research opportunities, and uncover the pathways that will shape your academic and professional future.

BZ220 – Introduction to Evolution

Learn how to communicate science to your friends, family, and the wider society in ways that make it feel exciting and important.

BZ240 – Synthetic Biology: Principles & Applications

Where science meets innovation. Ready to explore the future of biology? Dive into the cutting-edge world of synthetic biology, where engineering meets life itself. From gene drives and de-extinction to programmable cells and climate-resilient corals, this course tackles the science behind tomorrow’s breakthroughs—plus the ethical questions we must ask today.

BZ311 – Developmental Biology

The details of life are important. Join us in developmental biology, where we discuss how organisms form.

BZ320 – Biographic Approaches to Conservation

This is an opportunity to learn about the dynamic field of conservation biogeography!

BZ390 – Biology of Sex

What is sex and how do we know? Explore the evolutionary, genetic, and behavioral foundations of biological sex across the animal kingdom—and beyond. Challenge your understanding in this thought-provoking journey from chromosomes to courtship.

BZ401 – Comparative Animal Physiology

How do animals work? What allows whales to dive deep, or birds to fly high? Learn about animal extremes and how their physiology shapes what they can do!

BZ414 – Vertebrate Climate Change Responses

This course is designed to help students understand the impacts of climate change on our planet’s animals.

BZ415 – Marine Biology

This course explores marine life from the microscopic single cell organisms to the largest whales and describes how they are all connected.

BZ424/520 – Principles of Advanced Systematics / Advanced Systematics

Students interested in developing and evaluating phylogenetic hypotheses and the many real-world applications of systematic science should consider this course, which allows them to develop research skills relevant to evolutionary biology.

BZ440 – Plant Physiology

Who is this course for?

  • Students who are interested in understanding carious facets of plant functions at cellular, organellar, and whole plant level during its life time.
  • Students who also want to learn various physiological aspects at the molecular level and how these processes regulate the plants’ response to changing environments conditions which in turn influences their growth and productivity.
  • The main target groups are upper-division undergraduate students with backgrounds/career interests in Biology, Horticulture, Soil and Crop Science, Forestry, Rangeland Ecology, and related areas. Graduate students conducting research in similar fields are also welcome.
  • Those students who want to pursue plant research related jobs in the private sector, federal and state institutions are encouraged to enroll as this course fulfils their basic requirements.
BZ479 – Biology and Behavior of Dogs (online)

Decode the science behind your best friend! Ever wondered why dogs do what they do? This fully online, asynchronous course dives into the fascinating world of canine behavior through the lens of physiology, genetics, development, and evolution. Explore how domestication and selective breeding shape the minds and instincts of our furry companions—and their wild canid cousins.

BZ480A4 – Service Dog Training for on Campus Work (online and in-person)

Want to make a real impact while learning unique skills? This course prepares you to train service dogs for public access and campus environments. You’ll explore the differences between service, therapy, and emotional support animals, and learn how to assess and support a dog’s emotional wellbeing. This hands-on course gives you practical experience and communication skills that set you apart. If you have a dog and want to dive into a rewarding field, add this to your schedule!

BZ480A8 – Biotech for the Industry-Curious

Explore biotech careers while learning applied biological innovations and how they were made. This course combines marketable skills with real-world biotech concepts to help you navigate the industry successfully.

BZ541 – Hemp Biology (online)

Explore the science behind cannabis. Curious about the biology of one of the world’s most versatile plants? This asynchronous online course dives deep into the science of cannabis—from its evolution and anatomy to cannabinoid production and medical applications. Learn how genetics, horticulture, and sustainability shape the future of hemp and cannabis research.

BZ692A.003 – The Distracted Student and What to Do About It

In this course, you’ll explore proven strategies to capture attention, foster curiosity, and build a sense of community, skills that translate directly into better teaching and learning outcomes. If you’re preparing for a career in academia or want to strengthen your teaching toolkit, this course offers actionable insights you can apply immediately.

Fall 2025

  • Promotional graphic for Fall 2025 Biology courses at Colorado State University. Features a colorful, modern design with icons representing various biological fields such as genetics, ecology, and physiology. Encourages students to explore upcoming course offerings in the biology department.
  • Flyer for BZ220: Introduction to Evolution, a 3-credit Fall 2025 course at Colorado State University. Lists prerequisites in biology and math. Describes course goals including understanding evolutionary mechanisms, speciation, biodiversity, and phylogenies. Offers both online and in-person sections with instructors Zach Grochau-Wright and Jennifer Neuwald. Background includes illustrations of birds and plants.
  • Promotional graphic for BZ478: Biology and Behavior of Cats, an online course at Colorado State University. Features a stylized illustration of a domestic cat with visual elements suggesting genetics, neurobiology, and behavior. Highlights the course’s focus on how physiology, neurobiology, and evolution influence feline behavior.
  • A promotional flyer for a course titled "Recognizing and Addressing Oppression in the Sciences" offered by the Biology Department at Colorado State University. The course is available as BZ492A.003 (CRN: 77161) and BZ692A.003 (CRN: 73890), scheduled for Fall 2025, worth 2 credits, and meets Thursdays from 2:00 to 3:50 PM. The flyer includes illustrations of scientific tools, animals, and diverse human faces. The text invites students to move beyond surface-level equity and inclusion conversations by critically examining the history and systems of science that perpetuate harm.
  • Promotional graphic for BZ544: Effective Scientific Presentations, a course at Colorado State University. Features a clean layout with bold text, a microphone icon, and visual elements suggesting communication and professionalism. Designed to attract students interested in improving their science communication skills.
  • Promotional graphic for BZ572: Phytoremediation, a Spring 2025 course presentation at Colorado State University. Features a clean, academic layout with plant imagery and environmental science motifs, emphasizing the course’s focus on using plants to clean up environmental contaminants.

Course Snapshots

LIFE 102 – Attributes of Living Systems

This course is an introductory biology course that works well for both incoming Freshmen and outgoing Seniors. It not only provides a basis for more-advanced courses in life sciences, but also serves as an effective review for more-advanced students.

BZ220 – Introduction to Evolution

NEW Online! Learn how to communicate science to your friends, family, and the wider society in ways that make it feel exciting and important.

BZ223 – Plant Identification

With the ecological and environmental issues we are facing as a society, plant Identification skills are more important than ever. Learn how to identify flowering plants in a way that will serve you no matter where you live/work in the future!

BZ300 – Animal Behavior

For anyone interested in understanding how and why animals do what they do!

BZ492 and BZ692 – Recognizing and Addressing Oppression in the Sciences

Go beyond surface level conversations about equity and inclusion in the sciences by taking a critical lens to science history and critiquing the systems that perpetuate harm.

BZ544 – Effective Scientific Presentations

Learn how to communicate science to your friends, family, and the wider society in ways that make it feel exciting and important.

BZ572 – Phytoremediation

Our planet faces numerous environmental risks stemming from industrial development, including mining, gas emissions, chemical fertilizers, pesticide applications, and municipal waste generation. The accumulation of these contaminants in soil, water, and air harms plants, animals, humans, and the environment. Various strategies, such as chemical-based, physicochemical, and biological methods, have been employed to remediate these pollutants. Among these, the biological methods, especially phytoremediation, are the most accepted strategy because they are energy efficient, cost-effective, and eco-friendly. It is important to understand the sources of different pollutants and how we can reduce their accumulation at both the generation and decontamination levels. In this course, we will cover the different types of pollutants and their sources, the various strategies to remediate them, and the pros and cons of each approach with emphasis on bioremediation. This limited seats, 3-credit course will provide each student with the opportunity to practice searching databases, preparing reports or reviews, creating presentations, presenting to a group, and participating in scientific discussions in addition to acquiring knowledge about the course subject. Graduate and undergraduate students from biology, horticulture, soil and crop science, forestry, ecology, chemistry, and engineering will benefit from this course.

Education Abroad

  • Cover graphic for Education Abroad Recommended Programs from Colorado State University. Features a collage of international landmarks, natural landscapes, and cultural imagery, representing global study opportunities. Includes CSU branding and a title banner promoting study abroad experiences.
  • Promotional graphic for a Kenya Study Abroad program offered by Colorado State University. Features a scenic photo of African wildlife and landscapes, with text highlighting the opportunity for students to study ecology and conservation in Kenya. Includes university branding and program details.
  • Promotional graphic for an Education Abroad program in Honduras offered by Colorado State University. Features imagery of tropical landscapes and marine life, highlighting opportunities for students to study ecology, conservation, and biodiversity in Honduras. Includes university branding and program details.
  • A group of people stands outdoors in front of a mountainous landscape. The image is part of a promotional flyer for a Colorado State University study abroad program titled "Ecology, Evolution, and Conservation of Biodiversity in Ecuador." The flyer includes program details such as the location (Quito, Tandayapa, and Tiputini in Ecuador), term (Winter), course requirement (BZ 449A - 4 credits), and program leader (Tanya Dewey). A QR code is included for more information.
  • Promotional flyer for Colorado State University’s study abroad program titled “Field Biology and Behavior of Primates in Madagascar.” The flyer features two images: the top left shows a lemur clinging to a tree in a forest, and the bottom left shows students conducting nighttime field research with headlamps in a dense forest. The right side contains program details on a yellow background, including highlights like observing lemurs in the wild, studying rainforest biology, and visiting Ranomafana National Park. Text lists locations (Madagascar, cities such as Maki and Anstsarabe), summer term, course requirement (BZ482), and contact information for program leader Jennie Willis. A QR code and link for more information appear at the bottom. Logos for Colorado State University’s College of Natural Sciences, Biology Department, and International Programs are displayed along the top and bottom.
  • Promotional graphic for a First-Year Seminar Abroad program in Australia offered by Colorado State University. Features imagery of Australian wildlife and landscapes, highlighting opportunities for students to study biology in an international setting. Includes university branding and program details.
  • Promotional graphic for an Education Abroad program in Mexico offered by Colorado State University. Features imagery of coastal and desert landscapes, highlighting opportunities for students to study marine biology, ecology, and conservation. Includes university branding and program details.

Our Education Abroad programs are as diverse as they are enticing! Check out our programs and learn more about these incredible opportunities here: CSU | Education Abroad | Recommended CNS Programs Abroad

Learn more about CSU’s Education Abroad Programs here: CSU | Education Abroad

Speak with an advisor to see if these programs are right for you!: CSU | Biology | Advising

Application Deadlines

Behavior and Biology of African Mammals in Kenya: Summer Break – APPLY
  • Early Deadline: December 1st
  • Final Deadline: December 15th
Dolphin Behavior & Physiology in Honduras: Winter & Summer Break – APPLY
  • Winter
    • Priority Deadline: May 1st
    • Final Deadline: September 15th
  • Summer
    • Priority Deadline: December 1st
    • Final Deadline: February 1st
Ecology, Evolution, & Conservation of Biodiversity in Ecuador: Winter Break – APPLY
  • Priority Deadline: May 1st
  • Final Deadline: September 15th
Field Biology & Behavior of Primates in Madagascar: Summer Break – APPLY
  • Priority Deadline: December 1st
  • Final Deadline: February 1st
First Year Seminar Abroad: Biology in Australia: August – APPLY
  • Priority Deadline: April 1st
  • Final Deadline: May 4th
Marine Biology in Mexico: Fall Break – APPLY
  • Early Deadline: March 1st
  • Final Deadline: April 15th
Course Syllabi

Class Highlights

Field Mammalogy (BZ 340)

Field Mammalogy (BZ 340)

Mammalogy (BZ 330)

  • A student holding a taxidermy squirrel on a Styrofoam board
  • A student sitting at a lab bench working on small mammal taxidermy
  • Two students standing by some small mammal taxidermy specimens in the Teaching Collections lab.

A successful specimen prep day! These ground squirrels are ready to be used for instruction in BZ330: Mammalogy. Keep an eye out for these specimens in our teaching collection.

Learn more about specimen prep here: YouTube | Museum Prep 101

Warning: The linked video explains the process of preparing museum specimens. The content may be considered graphic by some.

Behavior and Biology of African Mammals

“Pursuing new educational frontiers” – by Allie Ruckman, Elements

A brand-new course in the Department of Biology, Behavior and Biology of African Mammals, brought 16 students to Kenya summer 2023 to practice fieldwork and observational skills in an environment very unlike that of Northern Colorado.

  • Photo of students on the Kenya study abroad trip featuring a giraffe with them
  • Study abroad students in an offroad vehicle in Kenya
  • Group photo of the study abroad students with instructor Jennie Willis (bottom right) from the summer 2024 Kenya trip
  • Students on the study abroad trip to Kenya in offroad vehicles taking field notes and using binoculars
  • Students in a bramble hut on the Kenya study abroad trip
  • Students and locals gathered in a circle amongst scraggly bushes beneath a cloud spattered blue sky in Kenya
  • Silhouette of a tree in Kenya
  • Giraffe in brush
  • Zebra on an outcropping of rock beneath a partly cloudy blue sky
  • Students gathered in a Kenyan forest listening to a guide

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News

Trading places: Sue James, Melinda Smith swap roles in leadership transition

Sue James and Melinda Smith have spent years advancing Colorado State University through parallel leadership roles. Now, in a rare “trading places” transition within the Office of the Provost and Executive Vice President, these longtime friends are proving that stepping into each other’s shoes is the best way to move the institution forward.

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Legacy lives on through moss donation

Holmes Rolston III, University Distinguished Professor and professor Emeritus in the Department of Philosophy at Colorado State University, is widely known as a founding father of environmental ethics as a formal study, but in his personal life he was known as a man with a deep interest in moss. Over the course of his life, Rolston collected approximately 2,000 moss specimens, which upon his passing, have been donated to the Charles Maurer Herbarium at Colorado State University.

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Jan. 21 is National Squirrel Day: Learn fun facts about our favorite critters

In honor of National Squirrel Appreciation Day on Jan. 21, two CSU squirrel experts shared some fun facts based on their research.

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Ecovoltaics: How solar panels benefit Colorado grasslands and achieve state energy goals

As a grassland ecologist, Colorado State University Distinguished Professor Alan Knapp is interested in how the study of ecovoltaics can not only help Colorado achieve its renewable energy goals but also improve the conditions of its grasslands.

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Find Us

Development of a RUBY-Based Pre-mRNA Splicing Reporter
By Amandeep Cheema
3/9/26 at 8:00 AM in Biology 300
Hopping to Conclusions: How a Female Treefrog Responds to Consistency in Mating Signal Repetition
By Amir Alayoubi
3/9/26 at 11:30 AM in Yates 306
Biogeography and Ecological Restoration in the Alpine: Implementing Ecological Theory Across Scales 
By Dr. Sisimac Duchicela
3/24/26 at 4:00pm in Biology 136
How Do Plants Respond to Their Environment?
By Dr. Björn Willige
3/31/26 at 4:00 PM in Biology 136
All Seminars

DEPARTMENT OF BIOLOGY

Colorado State University
Biology Building, Room 111

1878 Campus Delivery
Fort Collins, CO 80523

Telephone: 970-491-7011
Fax: 970-491-0649
Email: CNS-Bio_Info@colostate.edu