There are many types of whales in the world.
But some whales have special circulation system:they have 4 hearts
It's because to ensure that the brain and heart muscle have the best oxygen supply to conserve oxygen during a long dive. And another reason is because
the it has enormous body and hearts needs to be very strong that it can supply oxygen to the whole body.
P.S: Their hearts can be upto the size of a minivan to the size of a double decker bus.
Beluga whales have only one heart like a human
The bowhead whale is a whale of the arctic. The beluga is a dolphin of the arctic. The narwhal is a porpoise of the arctic.
You must be thinking of the Beluga Whale. They live in the Arctic Ocean.
blue whale, sperm whale
a killer whale
killer whale
you need to become a killer whale if you want it
The Arctic Ocean
arctic
Whale
The NARWHAL, a type of arctic whale and many types of seals like the wedell seal.
Great white sharks have two chambers in their hearts:))
The beluga whale is a mammal that lives in the Arctic ocean north of Canada.