Enormous, scythe-like caudal fin about half the total length of the shark
Moderately large eyes
Color from brown to black on top, white below
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 )