Many species of pelagic sharks look similar, and some might be easily confused, but never the thresher, with a tail about as long as its body. Several species of threshers are found around the world in warm to cool, temperate waters. Some thresher species feed in the upper water column, while bigeye threshers inhabit the depths. Threshers use their tail to herd and stun prey (and are commonly foul-hooked in the tail). With their small mouth and teeth, threshers are not feared as man-eaters, but feed on small fish. They’re stubborn fighters, capable of uncanny bursts of speed, and can make spectacular leaps into the air. Threshers are known to be one of the better-eating sharks. Regulations vary from region to region; for example, the bigeye thresher is protected in Atlantic waters. The all-tackle world-record thresher was caught out of Bay of Islands, northern New Zealand, in 1983; it weighed 767 pounds, 3 ounces.