Colorado State University

What you'll study

The PhD in Biology is built around independent research guided by a faculty advisor, supported by a programme of advanced coursework and professional training. During the early years students take graduate-level courses that may include advanced molecular and cellular biology, population and community ecology, evolutionary biology, physiological ecology, bioinformatics and quantitative methods in ecology and evolution. Students also participate in departmental seminars and journal clubs, and will typically complete modules covering experimental design, statistics, and scientific communication.

Most students complete a combination of core and elective credits, followed by written and/or oral qualifying examinations that demonstrate readiness for dissertation research. The major component of the degree is an original dissertation based on hypothesis-driven research; students will design and execute experiments or field studies, analyse data, and defend their findings in a public dissertation defence.

• Typical coursework areas: molecular & cellular biology; evolutionary theory; population and community ecology; conservation biology; physiological ecology; genomics and bioinformatics; quantitative statistics.
• Training elements: laboratory and field research, teaching experience, professionalisation seminars, grant-writing workshops and ethics in research.
• Research opportunities: laboratory projects, long-term ecological field sites in the Rocky Mountain region, and interdisciplinary collaborations with related departments and research centres.

Entry requirements

Applicants are normally expected to hold a relevant master's degree or a strong bachelor’s degree with substantial research experience. Typical evidence of preparation includes a solid academic record in biological sciences, documented research experience (such as honours projects, published papers or laboratory/fieldwork), and clear research interests aligned with departmental faculty.

• Application documents commonly requested: academic transcripts, a research statement or statement of purpose, curriculum vitae, and three letters of recommendation from academic or research supervisors.
• Standardised tests: requirements for standardised tests (for example the GRE) vary over time; applicants should check the department’s admissions page for current policy.
• International applicants: proof of English language proficiency is required if English is not the applicant’s first language; acceptable tests and score thresholds are set by the university.
• Funding and fit: admission decisions weigh both academic potential and fit with faculty research interests; prospective students are encouraged to contact potential supervisors before applying.

Career prospects

Graduates of the PhD in Biology pursue a wide range of careers. Many move into tenure-track academic positions and postdoctoral research roles, where they continue independent research and teaching. Others find roles in the biotechnology and pharmaceutical industries, environmental consulting, conservation organisations, natural resource agencies, and governmental research laboratories.

Additional career paths include science policy and administration, museum and natural history curation, science education and outreach, data science and bioinformatics, and positions in non‑profit organisations that focus on biodiversity, climate and ecosystem services. The programme’s emphasis on quantitative skills, experimental design and communication prepares graduates for roles that require rigorous scientific problem-solving.

Why study at Colorado State University

Colorado State University offers a research-intensive environment with strengths across ecology, evolution, molecular biology and integrative organismal science. The university’s location near the Rocky Mountains provides exceptional access to diverse field sites for ecological and environmental research, while campus facilities support cutting-edge laboratory work including genomics, imaging and computational biology.

Students benefit from a collaborative culture, opportunities for interdisciplinary projects with related departments and research centres, and professional development resources such as teaching practicum and grant-writing support. Funding for PhD students is commonly available through research and teaching assistantships and competitive fellowships, which allow students to focus on research and gain valuable experience in mentorship and instruction.

Overall, Colorado State University is well suited to doctoral candidates who seek a balance of rigorous laboratory or field research, interdisciplinary collaboration and professional preparedness for diverse scientific careers.