Here's why:
* Different Prey: Polar bears are apex predators that hunt large prey like seals, while arctic foxes are opportunistic scavengers and hunters of smaller animals like lemmings, birds, and fish.
* Different Habitat: While both species are found in the Arctic, their habitats can overlap but aren't always the same. Polar bears spend much of their time on sea ice, while arctic foxes are more commonly found on land.
* Size Difference: Polar bears are much larger and stronger than arctic foxes, making it unlikely for a polar bear to even consider an arctic fox as prey.
Instead of being predators, polar bears and arctic foxes often coexist peacefully. Foxes will often follow polar bears, scavenging on the leftovers from polar bear kills. This is beneficial for both species: the fox gets a meal, and the polar bear gets rid of excess food.
So, while it's possible that a polar bear might accidentally kill an arctic fox, it's not a regular part of their diet, and they are not known to actively hunt them.