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Alopias vulpinus
Distinguishing Characteristics:
Habitat: Usually found in the open ocean, but also seen in shallow inshore water, including bays; most abundant within 40 miles of the shore
Size: To about 20 feet
Note: The common thresher shark uses its long tail to herd fish and then to stun and kill them.
In this video, a thresher shark uses its tail to stun and catch fish. (Source: Discovery Channel )