Caribbean Reef Sharks & Divers 01

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Caribbean reef sharks are fast-swimming, agile predators that feed primarily on free-swimming bony fish and cephalopods. Their aggressive demeanor enables them to dominate many other shark species on the reef, despite their moderate size. Many reef sharks have a home range on a specific area of the reef, to which they continually return. However, they are social rather than territorial. During the day, these sharks often form groups of five to 20 individuals near coral reef drop-offs, splitting up in the evening as the sharks begin to hunt.

Caribbean reef sharks were the first shark species known to perform a threat display, a stereotypical behavior warning that it is prepared to attack. The display involves a "hunched" posture with characteristically dropped pectoral fins, and an exaggerated, side-to-side swimming motion. Grey reef sharks often do so if they are followed or cornered by divers to indicate they perceive a threat. This species has been responsible for a number of attacks on humans, so should be treated with caution. Caribbean Reef Sharks were filmed by Heiko Kiera aka Ojatro, Florida in 2013.