Beluga and Narwhal: Monodontidae - Physical Characteristics, Behavior And Reproduction, Belugas, Narwhals, And People, Beluga (delphinapterus Leucas): Species Accounts - GEOGRAPHIC RANGE, HABITAT, DIET, CONSERVATION STATUS
whales live water captivity
Both these species live in the Arctic oceans, although their distribution is not continuous.
Narwhals live in deep water farther north than any other whale, following the ice pack as it grows and recedes. Beluga whales live in shallower water and are sometimes found farther south. In the summer, they move into estuaries (places where rivers empty into the ocean). They can survive in fresh water and have occasionally been found swimming hundreds of miles (kilometers) up river from the ocean.
Both these species are bottom feeders, diving deep to eat squid, fish, and shrimp. Narwhals have a more limited diet than belugas.
Beluga whales are considered Vulnerable, facing a high risk of extinction, dying out. Not enough is known about the size of the narwhal population to give them a conservation rating. All narwhals that have been taken into captivity have lived only a few months. However, beluga whales do well in captivity and are often exhibited at marine parks.
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Beluga whales and narwhals are the only two living species in this family. Although they look quite different, these species share certain physical characteristics, including a very small beak and small head. Their neck bones (cervical vertebrae) are not fused or joined together, giving them the ability to turn their head without turning their entire body. Neither species has a dorsal (back) fin, …
Physical characteristics: Beluga whales, sometimes called white whales, begin life colored light gray, then turn darker gray and become white as they mature. They are the only species of whale that is completely white. Beluga whales range in length from 13 to 16 feet (4 to 5 meters) and in weight from 1,500 to 3,500 pounds (700 to 1,600 kilograms). Males are about 25 percent larger than females. G…
Physical characteristics: Narwhals grow to be about 14 to 15.5 feet (4.2 to 4.7 meters) long and weigh 2,200 to 3,500 pounds (1,000 to 1,600 kilograms). Males are much larger than females. The most outstanding physical feature of the narwhal is its ivory tusk. The tusk is a tooth that in males grows out of the left side of the upper jaw in a counter-clockwise spiral. Tusks can grow to be one-third…
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