The cetacean family Monodontidae comprises two living whale species, the narwhal and the beluga whale and at least four extinct species, known from the fossil record. Beluga and narwhal are native to
Belugawhale MMC
Skull of a cross between a narwhal and a beluga whale, at the Zoological Museum, Copenhagen
Whales are a widely distributed and diverse group of fully aquatic placental marine mammals. As an informal and colloquial grouping, they correspond to large members of the infraorder Cetacea, i.e. al
Monodontidae
…The cetacean family Monodontidae comprises two living whale species, the narwhal and the beluga whale and at least four extinct species, known from the fossil record. Beluga and narwhal are native to coastal…
Southern right whale
Basilosaurus skeleton
Skeleton of a bowhead whale; notice the vestigial pelvis. Richard Lydekker, 1894