They are covered in Blubber.
skin and blubber
blubber
for their blubber and oil
meat, skin, blubber...
Killer Whales have thick skin. This skin is lined with blubber. Blubber is a layer of fatty tissue just beneath a marine mammal's skin. The blubber of a killer whale is 3 to 4 inches (7.6 to 10.1 centimeters) thick.
swim, eat and blubber around:)
The whale uses it as the first thin that separates whale from ocean. Humans never did much with the skin. We mainly wanted the blubber, to render it into oil.
Yes, whales are beneficial to the environment and they are also highly intelligent. Long ago whales were essential (also today) because they could feed hundreds of people. Their bones were used as weapons and their fat and blubber and skin used for clothing and warmth.
Blubber and whale oil are the main by-products.
Blue Whales have a lot of blubber (fat) which keeps them warm. While they proportionally have just as much blubber as other whales, their body contains 45 tons of it; the same amount of fat as 8,150 average humans.
Blubber.
They have actual skin instead of scales. Whales also have blubber, which fish do not posses. Whales have lungs and a blowhole instead of gills.