Has a Layer of Blubber?

Blubber is a thick layer of fat, also called adipose tissue, directly under the skin of all marine mammals. Blubber covers the entire body of animals such as seals, whales, and walruses—except for their fins, flippers, and flukes. ... Energy is stored in the thick, oily layer of blubber.

What was blubber used for?

People in northern regions have relied upon it as a high-energy food and the rich oil obtained from blubber was a key reason for the whaling trade. Oil form blubber was used as fuel for lamps, used in making candles, and employed in the manufacture of soap, cosmetics, machinery lubricants, and so forth.

Why do whales have a thick layer of blubber under the skin?

Whales are warm blooded marine mammals that can tolerate cold water temperatures. Whales use blubber as an insulation layer to help maintain the energy and warmth when they dive to cool depths or travel to cold waters such as in Alaska. The blubber layer is a thick (6 inches) layer of fat that is found under the skin.