With a pink salmon in it's jaws, a five-year-old male retreats into the forest before slitting open the fish’s belly and eating only the eggs. Other bears may consume everything, from head to tail.

Imagine not eating for half a year ... having watched the giant Katmai bear 747 consume 15 salmon in three hours. "This is direct evidence of his hard work and success in preparation for winter ...

from pinning the salmon down in shallow water or waiting to seize them as they leap upstream to stealing catches off other bears. A large, successful bear might consume 30 or more fish a day, eating ...