Alexander Klein Afp Getty, Haus Des, Blacktip Reef, Bays Aquariums, Klein Afp Getty Image, Sharks, Aquariums Pictures, Des Meer, Carcharhinus Melanopterus
A green sea turtle (R) (Chelonia mydas) swims next to a blacktip reef shark (L) (Carcharhinus melanopterus) in the aquarium of the Haus des Meeres ('House of the Sea'), in Vienna on June 27, 2012. (ALEXANDER KLEIN/AFP/GettyImages)
A blacktip reef shark (Carcharhinus mela A blacktip reef shark (Carcharhinus melanopterus) swims in the aquarium of the Haus des Meeres ('House of the Sea') in Vienna on June 27, 2012. AFP PHOTO / ALEXANDER KLEIN (Photo credit should read ALEXANDER KLEIN/AFP/GettyImages)
n this handout picture released by Awashima Marine Park, a 1.6 meter long Frill shark swims in a tank after being found by a fisherman at a bay in Numazu, on January 21, 2007 in Numazu, Japan. The frill shark, also known as a Frilled shark usually lives in waters of a depth of 600 meters and so it is very rare that this shark is found alive at sea-level.
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A Bonnethead shark swims at the Aquarium of the Pacific in Long Beach, California, on April 26, 2012.The Aquarium features a collection of o...
n this picture taken on September 3, 2011, an environmental activist releases a baby black-tip shark into the sea as part of an operation organised by the sharks protection group Dive Tribe off the coast of the southern Thai sea resort of Pattaya. (CHRISTOPHE ARCHAMBAULT/AFP/Getty Images)