Habitat of the polar bear and …

Adaptations of Polar Bear:
Their white fur gets camouflaged against the white background of snow protecting it from predators and also helps them catch their prey.
Two thick layers of fur act as an insulator protecting them from the surrounding harsh climate.
The polar bear carries out physical activities like swimming in order to keep warm
In order to avoid getting overheated they move slowly and rest often.
A strong sense of smell helps them in catching a prey
Can remain submerged underwater closing its nostrils.

Adaptations of Penguins:
Its white colour helps it blend in with the white background
Thick skin and a lot of fat protect it from cold
They huddle together in groups to keep themselves warm
They have webbed feet and they streamline their body while swimming which makes them good swimmers