Well it depends on which bear if it's a polar bear they mostly eat seals or sea lions. Maybe even walruses. If its a grizzly bear probably fish.
other types of bears such as the grizzly/brown bear eat black bears
Fish
pretty much anything. rubbish, meat, berries, leaves, any vegetation. and sandwiches
Most Hugh and McKinnon bears are omnivores (they will eat any food); however, a minority are vegetarians (they eat vegetation but not meat).
With there mouth
With there mouth
it eats alligators turtles types of bears baby jaguars and lots more
they eat seals ( meat)
Bears, in general, have been known to go through the trash in search of food to eat.
Polar bears eat mainly seals, and they derive energy from the food that they eat, as all animals do.
Under the ice on which the Polar Bears roam.
Bears get their food from many sources, including scavenging. They will eat dead things.