Do polar bears eat themselves

Answer 1

Polar bears attack humans only if they feel threatened by them and if they starve.

They feed mainly on ringed seals and bearded seals. Depending upon their location, they also eat harp and hooded seals and scavenge on carcasses of beluga whales, walruses, Narwhals, and bowhead whales, other marine mammals, reindeer, small rodents, sea birds, ducks, fish, eggs, vegetation (including kelp), berries, and human garbage.

Answer

You may look like a tasty morsel if you are out by yourself without protection. Definitely keep your distance.
Yes, if given the opportunity. Polar bears are the only bears that will actually hunt and stalk humans. many people die for that reason
Generally not. Polar bears rarely attack unless starving or provoked.
no but if they feel threatened they will attack

Answer 2

Themselves - no. Auto-cannibalism is not a successful concept.

Polar bears do sometimes eat OTHER polar bears though.

Males are quite known to kill and eat the cubs of other males.

Answer 3

Polar bears are one of few animals that will stalk and kill humans.