Are You a Bear or a Salmon?

In Alaska, salmon swim up to 31 miles upstream to spawn, while bears fresh from hibernation will take their young cubs on an equally incredible journey. The bears begin by walking two weeks without eating while avoiding predators and battling the elements until they get to the same final destination as the salmon.

The reward for the bear’s hard work: feasting on salmon. The reward for the salmon’s 31-mile swim: the chance to avoid being eaten by very hungry bears.…