Blubber is a thick layer of fat that lies under the skin and over the muscles of whales, dolphins, porpoises, seals, sea cows, and other sea mammals. It protects the animals from cold.
Whale oil is obtained by heating the blubber of the whale. The oil was once commonly used in such products as cosmetics, crayons, glue, margarine, and soap. People can also eat blubber. A traditional Inuit dish called muktuk is made of whale skin and blubber. See Whale (Skin and blubber) (Whales and people)
