How does rabbits fur help them survive?

Fur may be coloured to allow an organism to blend in with its surroundings, allowing it to hide or hunt.

It may also be insulating, which prevents animals from losing less heat, allowing them to inhabit colder climates.

Fur may also be used to display to others. Many threat displays involve making their fur stand on end to make themselves look more threatening. This could be used to scare away threats or gain dominance.