This description is about the beluga whales that live in the Arctic. Beluga whales are a unique species of whale that are found in the cold waters of the Arctic. They are known for their white color and their friendly nature. They are often seen in groups, swimming and playing together.
From Wikipedia
The beluga whale, is an Arctic and sub-Arctic cetacean. It is one of two living members of the family Monodontidae, along with the narwhal, and the only member of the genus Delphinapterus. It is also known as the white whale, as it is the only cetacean to regularly occur with this colour; the sea canary, due to its high-pitched calls; and the melonhead, though that more commonly refers to the melon-headed whale, which is an oceanic dolphin.