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Common dolphin
The common dolphin is the name given to two species (and possibly a third) of dolphin making up the genus ''Delphinus''.
Prior to the mid-1990s, most taxonomists only recognised one species in this genus, the common dolphin ''Delphinus delphis''. Modern cetologists usually recognise two species — the short-beaked common dolphin, which retains the systematic name ''Delphinus delphis'', and the long-beaked common dolphin ''Delphinus capensis''.
The common dolphin is not the dolphin of popular imagination despite its name; that distinction belongs to the bottlenose dolphin due to its widespread use in marine parks and its appearance in the television series ''Flipper''. However, this dolphin was the most frequently represented in the art and literature of ancient Greece and Rome.〔Watson, L. (1981). Sea Guide to Whales of the World. p270. ISBN 0-17-601535-3.〕
==Physical characteristics==
Both common dolphin species are medium-sized; adults range between long, and can weigh between , although the range between is more common. Males are generally longer and heavier.〔 The color pattern on the body is unusual. The back is dark and the belly is white, while on each side is an hourglass pattern colored light grey, yellow, or gold in front and dirty grey in back. They have long, thin rostra with up to 50–60 small, sharp, interlocking teeth on each side of each jaw.〔(【引用サイトリンク】url=http://library.thinkquest.org/17963/genus-Delphinus.html )〕
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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