Of bears and berries: Return of wolves aids grizzly bears in Yellowstone
Monday, July 29, 2013 - 14:50
in Earth & Climate
A new study suggests that the return of wolves to Yellowstone National Park is beginning to bring back a key part of the diet of grizzly bears that has been missing for much of the past century -- berries that help bears put on fat before going into hibernation. The berries could aid bear survival and reproduction.