Andrew Derocher
@AEDerocher
Professor of Biological Sciences @UAlberta. I've studied polar bears for 40 years. Author of Polar Bears: A Complete Guide to Their Biology and Behavior.
15-10-2014 18:30:25
5,8K Tweets
7,3K Followers
1,9K Following
@AEDerocher
Professor of Biological Sciences @UAlberta. I've studied polar bears for 40 years. Author of Polar Bears: A Complete Guide to Their Biology and Behavior.
15-10-2014 18:30:25
5,8K Tweets
7,3K Followers
1,9K Following