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The fin whale (Balaenoptera physalus), also known as the finback whale or common rorqual, is a species of baleen whale and the second-longest cetacean after the blue whale. The biggest individual reportedly measured 26 m (85 ft) in length, with a maximum recorded weight of 77 to 81 tonnes (85 to 89 short tons ; 76 to 80 long tons ).
The pygmy right whale shares several characteristics with the right whales, with the exception of having a dorsal fin. Also, pygmy right whales' heads are no more than one quarter the size of their bodies, whereas the right whales' heads are about one-third the size of their bodies. [11] The pygmy right whale is the only extant member of its ...
It is a major route in the seasonal migration of cetaceans, particularly fin whales, between the African coast (wintering site) and the northern Mediterranean (summer feeding and breeding site). The area is also frequented by a dozen other species of marine mammals, such as the Blue and White Dolphin, Risso's dolphin , Cuvier's Whale and ...
Among cetaceans, whales are distinguished by an unusual longevity compared to other higher mammals. Some species, such as the bowhead whale (Balaena mysticetus), can reach over 200 years. Based on the annual rings of the bony otic capsule, the age of the oldest known specimen is a male determined to be 211 years at the time of death. [69]
Species of the infraorder Cetacea A phylogenetic tree showing the relationships among cetacean families. [1]The evolution of cetaceans is thought to have begun in the Indian subcontinent from even-toed ungulates (Artiodactyla) 50 million years ago (mya) and to have proceeded over a period of at least 15 million years. [2]
Fin whales in the Gulf of St. Lawrence, off the coast of Labrador. The fin whale is more prevalent in high-latitude regions than throughout the tropics.However, in the autumn, Northern Atlantic fin whale populations off the coast of Labrador appear to migrate to the Caribbean islands, passing through Bermuda [2] [3]
Pilot whales are cetaceans belonging to the genus Globicephala. The two extant species are the long-finned pilot whale ... The tail fin, called the fluke, ...
Whales have torpedo-shaped bodies with non-flexible necks, limbs modified into flippers, non-existent external ear flaps, a large tail fin, and flat heads (with the exception of monodontids and ziphiids). Whale skulls have small eye orbits, long snouts (with the exception of monodontids and ziphiids) and eyes placed on the sides of its head.