As Their prey is aquatic, polar bears are great swimmers, and they are even recognised to eliminate beluga whales. In swimming, the polar bear employs only its entrance limbs, an aquatic adaptation located in no other 4-legged mammal. Polar bears are opportunistic and also predatory: they can consume lifeless fish https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA