1116-41494 - Slate pencil sea urchins (Heterocentrotus mammillatus) colour the hard coral in this Hawaiian reef scene with three free divers, Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America
1012-107 - Whale shark. Growing over 17m in length, despite it is th largest fish of the world, scientists still do not know a lot about the Whale Shark, such as where they migrate to, why divers don't see the free swimming babies, etc. Here, a bunch of divers may be a bit too close to the 8m long shark. By regulations in Ningaloo, swimmers have to be 3 meter from the whale shark. Ningaloo Reef, Western Australia
979-5583 - Adult green sea turtle (Chelonia mydas agassizii) underwater with snorkeler off the west side of Isabela Island in the waters surrounding the Galapagos Island Archipeligo, Ecuador. Pacific Ocean.