The adaptation that helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather is a thick layer of blubber.
- Animals such as whales and polar bears have a thick layer of fat known as blubber.
- Polar bears can stay warm because of this thick layer of blubber.
- This layer of blubber insulates their body in order to keep polar bears warm during extremely cold winter conditions.
- In polar bears, body temperature is maintained at 37° C due to their two layers of fur and a thick layer of blubber that insulate them.
In conclusion, the adaptation that helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather is a thick layer of blubber.
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