Why these animals have so much blubber

Animals that have blubber live in cold habitats, for example, Antarctica. The blubber, or fat, protects them from the snowy and icy environment. Walrus' are a great example. Without blubber, their insides would get too cold, and they could freeze to death.

hope this helps

Depends on which animal

Explanation:

some animals need lots of fat "excess skin" to survive in a certain environment or to adapt to a new habitat

a: the sheep and waste material both release carbon into the atmosphere.