What do orcas in the arctic eat?

Fishes, squids, seals, sea lions, walruses, birds, sea turtles, otters, penguins, cetaceans (both mysticete and odontocete), polar bears, reptiles, and even a moose have all been found in the stomach contents of orcas.

And, as their common name implies, the remains of other orcas have also been found in the stomachs of these "killer whales." It is uncertain why these animals are cannibalistic.

The diets of orcas vary from one region to another. In the Antarctic, orcas eat about 67% fishes, 27% marine mammals and 6% squid. In the Bering Sea near Alaska, they eat about 65% fishes, 20% squids and 15% marine mammals.