Doctor of Philosophy in Ecology and Evolutionary Biology at Texas A&M University

Programme overview

The PhD in Ecology and Evolutionary Biology involves intense laboratory or field research combined with study of ecological, evolutionary and genetic/genomic principles. It is administered by the Texas A&M intercollegiate faculty of Ecology and Evolutionary Biology. Graduates master experimental design, statistical, biomolecular, genomic, theoretical and experimental ecological methods, plus scientific and public communication.

Faculty: Interdisciplinary Programs | Department: Ecology and Evolutionary Biology (intercollegiate faculty) | Duration: 64 semester credit hours minimum with a prior master's degree (or DDS/DMD, DVM, MD from a US institution); 96 hours minimum from a bachelor's degree | Study mode: full-time | Location: College Station, TX, United States

What you will study

Laboratory or field-based research training with coursework in ecological, evolutionary and genetic/genomic principles, leading to a dissertation.

Career pathways

Research and scientific careers in ecology and evolutionary biology.

Official programme page

Application information

Entry requirements

Texas A&M University graduate admission (applies to all graduate programs): a formal application; application fee of $65 for U.S. citizens and permanent residents or $90 for international applicants (plus any application-service fee). The normal requirement is a scholastic record over at least the last two years of full-time degree study showing ability to do graduate-level work; applicants changing fields or with weaker records may be required to take additional preparatory work. Departments may set higher requirements, which supersede the university's. International applicants from non-English-speaking backgrounds need a TOEFL iBT of at least 80 (taken before 21 January 2026), a TOEFL iBT score of at least 4.5 with at least 4.0 per skill (taken on or after 21 January 2026), TOEFL Essentials 8.5, or IELTS Academic 6.0 overall; exemptions apply for a US baccalaureate or higher, GRE Verbal 146+, GMAT Verbal 77+, and citizens of listed English-speaking countries (including Ghana and Nigeria).

Requirements published at program group level.

Tuition is charged per credit, so the total depends on the modules you register for each year. Current fees are listed in the official fee schedule.

The graduate application processing fee is $65, in addition to the centralized application service fee. Deadlines and required documents are set by each department.

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