Role of Natural Selection
Adaptations:
- Less fur: The polar bears will loose their fur because they don't need as much because they now live in the taiga biome and in the taiga the winters are not as harsh as they are in the tundra.
- Weigh less: Due to a change in diet, the polar bears are now eating fish, elks, deer, etc. They are used to eating ringed seals, and whales. They are not eating as much as they used to which caused major weight loss.
- Hibernation patterns: Polar bears are not used to hibernating because they are accustomed to the harsh cold climate and how to get food sources. Since they are not in their natural biome, it is very hard for them to find food during the winter. So they would have to begin hibernating so they don't starve to death.
- Migration: As the ice caps were melting the polar bears had to learn how to migrate to the taiga, so they would not drown or starve.