Orcas, humans, and walruses can.
yes polar bears do attack people because a polar bear attacked a ladie!
Not all whales, but Killer Whales can, and have eaten Polar Bears. Polar Bears are one of the many animals that Killer Whales eat. See related links below for others.
Orcas are known to occasionally kill and eat swimming polar bears.
Polar bears and especially killer whales kill and eat walruses.
The male is more known to do this, although females bears can and do kill their young.
Nothing, these animals are at the apex of their food chain.
Polar Bears are marine mammals.
Polar bears are animals of Arctic regions. The only polar bears here are in the NC Zoo.
They kill peopleThey kill other polar bears, including cubs.
Orcas are known to occasionally kill and eat swimming polar bears.
Polar Bears don't have jobs they are animals.
from what i know, i dont think other animals kill polar bears, i think its us people that kill them. but now there are laws against hunting for a sport and killingpolar bears, it is now illegal to kill polar bears.Orcas have rarely been seen taking Polar bears, but it does happen.We are the ones killing the poor polar bears.We are the ones who release the green house gases and that creates global warming which melts the arctic and their "home."