Yes, most all mammals do. They have to to survive and create more killer whales.
defense
Killer Whales (Orca orca) have a thick layer of blubber to keep them warm. Killer whales are a toothed whale belonging to the oceanic dolphin family.
Killer whales are very tough animals with incredibly strong jaws. Animals that attack it will be very lucky to survive.
they are specials in cold and hot weather.
what colors are Killer Whales what colors are Killer Whales what colors are Killer Whales
There are about 3000 killer whales in the world.
Killer whales are usually found in colder and warmer climates, so considering where the killer whale is from, it will affect it in different ways.
killer whales do eat puffins killer whales do eat puffins
no Killer whales are endothermic
killer whales growth
Yes, as remember, all creatures neeed air-oxygen, to survive.