The Caribbean reef shark (Carcharhinus perezii , often misspelled perezi ) is a species of requiem shark , family Carcharhinidae . It is found in the tropical waters of the western Atlantic Ocean from Florida to Brazil , and is the most commonly encountered reef shark in the Caribbean Sea . With a robust, streamlined body typical of the requiem sharks, this species is difficult to tell apart from other large members of its family such as the dusky shark (C. obscurus ) and the silky shark (C. falciformis ). Distinguishing characteristics include dusky-colored fins without prominent markings, a short free rear tip on the second dorsal fin , and tooth shape and number.
Measuring up to 3 m (10 ft) long, the Caribbean reef shark is one of the largest apex predators in the reef ecosystem , feeding on a variety of fishes and cephalopods . They have been documented resting motionless on the sea bottom or inside caves, unusual behavior for an active-swimming shark. If threatened, it may perform a threat display in which it frequently changes direction and dips its pectoral fins . Like other requiem sharks, it is viviparous with females giving birth to 4–6 young every other year. Caribbean reef sharks are of some importance to fisheries as a source of meat, leather , liver oil , and fishmeal , but recently they have become more valuable as an ecotourist attraction. In the Bahamas and elsewhere, bait is used to attract them to groups of divers in controversial "shark feedings". This species is responsible for a small number of attacks on humans.
Description above from the Wikipedia article Carcharhinus perezi
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