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    https://en.wikipedia.org › wiki › Beluga_whale

    Beluga whale - 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 th… See more

    Taxonomy

    The beluga was first described in 1776 by Peter Simon Pallas. It is a member of the family Monodontidae, which is in turn part of the parvorder Odontoceti (toothed whales). The Irrawaddy dolphin was once placed in the same f… See more

    Evolution

    Mitochondrial DNA studies have shown modern cetaceans last shared a common ancestor between 25 and 34 million years ago The superfamily Delphinoidea (which contains monodontids, dolphins and porpoises) … See more

    Description

    Its body is round, particularly when well fed, and tapers less smoothly to the head than the tail. The sudden tapering to the base of its neck gives it the appearance of shoulders, unique among cetaceans. The tail-fin grow… See more

    Behaviour

    These cetaceans are highly sociable and they regularly form small groups, or pods, that may contain between two and 25 individuals, with an average of 10 members. Pods tend to be unstable, meaning in… See more

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