Dr. Martyn Obbard is a scientific advisor to Polar Bears International. He is also a research scientist emeritus with the Ontario Ministry of Natural Resources and an adjunct professor in the Environmental and Life Sciences program at Trent University in Peterborough, Ontario. His research interests include the ecology and demography of the Southern Hudson Bay polar bear population, one of the most southerly polar bear populations in the world. He is also interested in human-polar bear conflict issues and how future changes in sea ice distribution and duration will affect the abundance and distribution of these bears. With colleagues, he has also looked at how the body condition of individual bears has changed since the mid-1980s.