The tiger shark ("Galeocerdo cuvier") is a species of requiem shark, and is the only member of the genus Galeocerdo. This is one of the largest known species of shark. It reaches lengths of up to 5.5 metres (18 feet), and weighs over 900 kg (2000 pounds). The tiger shark is found throughout the world's coastal temperate and tropical waters, with the exception of the Mediterranean Sea, and have been known to swim to depths of up to 350 metres (1150 feet). Tiger sharks feed mainly on bony fish, rays, squid, crustaceans, seals, and dolphins. The tiger shark is the only species in its family which is ovoviviparous, giving birth to 10-82 pups at a time.