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Arnoux’s Beaked Whale

Arnoux’s Beaked Whale:

A team of researchers has stumbled upon rare Arnoux’s Beaked Whales off the coast of Antarctica recently.

  • Arnoux’s Beaked Whale are a rare cetacean species.
  • A cetacean is a member of the family of large aquatic mammals such as whales, dolphins, and porpoises.
  • Scientific Name: Berardius arnuxii
  • Arnoux’s Beaked Whales are a gregarious species generally found in groups of 6-10, but larger groups of 80 individuals have been recorded.
  • They are found only in the Southern Hemisphere.
  • Their distribution is circumpolar in deep, cool temperate and subpolar waters, generally south of 40°S to the edge of the Antarctic ice shelf (approximately 78°S).
  • They are known for brilliant diving abilities and can measure up to around 30 feet long.
  • Females are thought to be slightly larger than the males.
  • The body is spindle-shaped and resembles dolphins in appearance.
  • The dorsal fin is small, triangular, slightly hooked, and positioned well back on the body.
  • They are predominantly dark brown in color with paler colouring on their head and ventral sides (undersides), which also have white patches.
  • Like other whale species, males show extensive scarring, particularly around their dorsal fins.
  • They are often called Southern four-toothed Whales because of their four teeth found in their lower jaws that are visible even when their mouth is closed.
  • Conservation Status: IUCN Red List: Least Concern