White-tip reef sharks are nocturnal predators that feed on small fishes, mollusks and crustaceans. They have slender and highly flexible bodies and adults reach a length of around 1.8m. This allows them to get into small cracks and holes in the reef in pursuit of smaller fish which they track down with their acute sense of smell. White-tip reef sharks tend to rest in caves or channels between reefs during the day and often congregate into large hunting groups around dusk. This behavior has been observed and made famous in places such as the Cocos Islands, off Costa Rica, where over a 100 sharks have been seen hunting in a group.
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