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false killer whale
The false killer whale (''Pseudorca crassidens'') is a cetacean, and the third-largest member of the oceanic dolphin family (Delphinidae). It lives in temperate and tropical waters throughout the world. As its name implies, the false killer whale shares characteristics, such as appearance, with the more widely known killer whale. Like the killer whale, the false killer whale attacks and kills other cetaceans, but the two species do not belong to the same genus.
The false killer whale has not been extensively studied in the wild; much of the data about it have been derived by examining stranded animals.
==Discovery==
The false killer whale was first described by the British paleontologist and biologist Richard Owen in his 1846 book ''A history of British fossil mammals and birds''. He based this work on a fossil discovered in 1843 in the great fen at the neighourhood of Stamford, Lincolnshire. Owen proposed to name the cetacean ''Phocaena crassidens'', and by comparing its characteristics and dimensions, noted a general resemblance to those of the grampus (''Phocaena orca'') and the round-headed porpoise (''Phocaena melas'').〔
The species was thought extinct until Johannes Reinhardt confirmed it was alive when he described a large pod at the Kiel Bay in 1861. One of these was captured, and others were found the following year, beached on the coast of Denmark.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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