Northern bottlenose whale
The northern bottlenose whale is endemic to the North Atlantic Ocean and is found in cool and subarctic waters such as the Davis Strait, the Labrador Sea, the Greenland Sea and the Barents Sea.
The northern bottlenose whale is a species of the ziphiid family, one of two members of the genus Hyperoodon. The northern bottlenose was hunted heavily by Norway and Britain in the 19th and early 20th centuries. It is one of the deepest diving mammals known, reaching depths of 1453 m (4767 ft).
It was first described by Johann Reinhold Forster in 1770, basing the name on the "bottle-nosed whales" seen by Pehr Kalm in his Travels into North America, and on Thomas Pennant's 1766 description of Samuel Dale's "bottle-head whale" found stranded above a bridge in Maldon, Essex, in 1717.
Weight estimates are hard to come by. For the northern bottlenose whale, 5,800–7,500 kilograms (12,800–16,500 lb) is given somewhat consistently.
Northern bottlenose feed mainly on squid and fish.
Very little is known about the life histories of beaked whales.Gestation varies greatly between species, lasting 17 months for Baird's beaked whales and 12 months for the northern bottlenose whale. There are currently no data available on their reproductive rates.
Despite being deep diving beaked whales, they are known to come, play, and rest in shallow waters in small numbers at each time. They are also very playful and curious towards human vessels unlike most of other beaked whales, but this was one of factors resulted in making them as an easy target for whalers.