Most cats also have retractable claws, for hunting and climbing, that they can pull inside when not in use. Many cats have long tails that help them balance when jumping and climbing. Unlike cats, their claws do not retract and the can be used for climbing or digging. Most weasel relatives have a long body with short legs and a pointed face. This allows for better mobility in the water.
Sea lions can use both their front and back flippers to move on land.
Seals have a more difficult time moving on land and rely on their stomach muscles to pull themselves along. Members of these groups all have a thick layer of blubber that helps keep them warm in cold waters. The antelope group is especially adapted for life in the African savanna. They have long slender legs that make them swift runners and this allows them to escape predators in the open grassland. Antelope have tough horns that may be used to defend territory or for protection.