Polar bears are apex predators. Only humans regularly hunt and kill them.
Orcas occasionally will attack and eat swimming polar bears.
The orca is the only animal that occasionally preys on swimming polar bears.
A polar bear preys on arctic foxes A polar bear preys on arctic foxes
In the wild, Arctic wolves primarily prey on muskoxen and Arctic hares. They have also been found to prey on lemmings, Arctic foxes, birds and beetles. They are an apex predator and are not preyed upon by other animals.
Polar bears are supposedly preyed upon by killer whales or orcas. On the other side of the coin, polar bears actively prey on seals, walruses and belugas. The most competition a polar bear sees is with other polar bears.
The bear is what is known as an apex predator; it preys upon other animals but no other animal preys upon the bear (not counting parasites; bears can have ticks, for example, which eat part of the bear, but not the whole bear). Of course, bears do not live forever, and when they die, lots of other animals can eat them. But no animal kills bears to eat them, not counting humans (bear paws are considered a delicacy in China).
The polar bear
Polar bears do not live in the rainforest but they do depend upon it for the oxygen it produces.
Polar bears are apex predators, found at the very top of the food chain. Only humans and the occasional orca have been known to prey upon polar bears.
Humans and bears
polar bears are related to bears.
There is nothing that preys on bears. They are a the top or the food chain and are predators.
Polar bears do.