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Narwhal. The narwhal (Monodon monoceros) is a species of toothed whale native to the Arctic. It is the only member of the genus Monodon and one of two living representatives of the family Monodontidae. The narwhal has a similar build to the closely related beluga whale, with which it overlaps in range and can interbreed.
Monodon. C. Linnaeus, 1758. Extant genera. Monodon. Delphinapterus. 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 regions and pack ice around the Arctic Ocean.
Orca gladiator (Bonnaterre, 1789) The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. It is the only extant species in the genus Orcinus and is recognizable by its black-and-white patterned body.
The sperm whale has a particularly pronounced melon; this is called the spermaceti organ and contains the eponymous spermaceti, hence the name "sperm whale". Even the long tusk of the narwhal is a vice-formed tooth. In many toothed whales, the depression in their skull is due to the formation of a large melon and multiple, asymmetric air bags.
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. all cetaceans apart from dolphins and porpoises. Dolphins and porpoises may be considered whales from a formal, cladistic perspective.
The narwhal, often referred to as “The Unicorn of the Sea,” is certainly one of the most bizarre animals on Earth. These creatures feature a very long tusks jutting out of their foreheads.
D. leucas. Binomial name. Delphinapterus leucas. (Pallas, 1776) Beluga range. The beluga whale (/ bɪˈluːɡə /; [ 4 ]Delphinapterus leucas) is an Arctic and sub-Arctic cetacean. It is one of two members of the family Monodontidae, along with the narwhal, and the only member of the genus Delphinapterus.
Delphinoidea. Family: Monodontidae. Hybrid: Delphinapterus leucas × Monodon monoceros. A narluga (portmanteau of narwhal and beluga) is a hybrid born from mating a female narwhal and a male beluga whale. [1] Narwhals and beluga whales are both cetaceans found in the High Arctic and are the only two living members of the family Monodontidae.