*MSc Project Opportunity* The Desforges Lab in Ecotoxicology and Wildlife Stress <https://desforgeslab.weebly.com/> at the University of Winnipeg is excited to advertise for a MSc opportunity in the area of Quantitative Polar Bear Ecology, Global Change Biology, and Ecosystem Dynamics. We are looking for a motivated MSc student to work on a project focused on polar bear and ringed seal teeth analysis *starting May or September 2025*. The successful candidate will use digital image analysis to measure annual growth layer groups in polar bear and ringed seal teeth and apply statistical models to explore relationships with biological data collected from each animal as well as relevant environmental data on habitat change over time. *Qualifications and Support* Suitable candidates will have a 4-year bachelor’s degree (honours preferred) in a relevant field, such as biology, environmental science, wildlife management, or similar. The main project tasks involve analyzing digital photos of tooth cross-sections and use of statistical modeling approaches. The candidate will also get hands-on training on how to prepare teeth samples for staining and imaging. When possible, the candidate may get opportunities for field-work associated with marine mammal research in the Arctic. The successful candidate will have experience and/or interest in research and data/statistical analysis using R, proven academic excellence, and strong English writing skills. The successful candidate with receive a competitive 2-year funding package with direct support for professional development (e.g., conferences, publications, etc.). Students will also be encouraged to apply to internal and external funding opportunities to support their research projects and career advancement. The candidate will benefit from co-supervision and collaboration with world leading experts in Arctic marine mammal ecology, including at Environment and Climate Change Canada (Dr. Evan Richardson) and Fisheries and Oceans Canada (Dr. Steve Ferguson, Dr. David Yurkowski). *How to Apply* Serious applicants that clearly meet the above qualifications should email Dr. Jean-Pierre Desforges (j.desforges@uwinnipeg.ca) with the subject line “MSc polar bear teeth” and include: 1. An updated CV 2. Transcripts (unofficial acceptable) 3. Statement of interest in the research project and description of qualifications