Some animals hibernate. They make cosy dens, their body temperature and heart rate slows down.

They stay still until temperatures 
get warmer outside.

Animals have thick layers of fur or feathers to keep them warm.

Some have a layer of 
water-repellent fur.

If a habitat gets too cold some 
animals just stay there for the 
summer and leave in the winter.

This is called migration.

Animals can also adapt by working together with other animals.

They help each other survive.

Some animals have white fur which matches the colour of the snow so they blend in.

Some animals have a thick layer 
of fat called blubber, this keeps 
them warm.