Dr. Jean-Pierre Desforges is an Assistant Professor in the department of Environmental Studies and Sciences at the University of Winnipeg. His research focuses on understanding the impacts of human activities on the environment and wildlife populations. With the continuing loss of sea ice due to climate change, Arctic species like the polar bear and ringed seal are under threat. Desforges and his team have developed an innovative approach to study the health of polar bear populations; a method that can provide valuable insights into their biology, ecology, and behaviour affected by long-term environmental change in the arctic. On this episode the research question is: what can polar bear teeth tell us about the impacts of climate change?