Title : SIDE VIEW OF HATCHET FISH File Name : 118_847901-W.jpg ID Number : 118_847901 Caption : SIDE VIEW OF HATCHET FISH Credit : Dorling Kindersley / Universal Images Group
Title : Great Bahama Canyon File Name : 132_1235721-W.jpg ID Number : 132_1235721 Caption : Great Bahama Canyon (dark blue) from space. This is part of a branch of the Canyon that is called the Tongue of the Ocean. The dark blue waters of this abyss contrast with the light blue waters of the shallow Great Bahama Bank, marking a depth differential of hundreds of metres. The valleys, running down from the Bank to the cliff walls of the Canyon, are etched by erosion processes. Some of this erosion occurred when the Bank was exposed by lower sea levels during the last Ice Age some 12,000 years ago. The Canyon, over 225 kilometres in length, reaches a width of 37 kilometres and a depth of 4 kilometres. Photographed on 18 April 1997 during the Mir-Space Shuttle mission NM23. Credit : NASA / SCIENCE PHOTO LIBRARY / Universal Images Group
Title : Rip current File Name : 132_1243149-W.jpg ID Number : 132_1243149 Caption : Rip current. Rip currents are strong surface currents returning seaward from the shore. They can occur at any beach when backwash from breaking waves is pushed aside by oncoming waves, and has to find an exit back to the sea. The presence of a rip current, or rip tide, can be recognised by a difference in the colour of the water (seen here as a lighter green at centre). Additionally, the waterline is lower on the shore near a rip current. Photographed at De Hoop Nature Reserve, South Africa. Credit : PETER CHADWICK / SCIENCE PHOTO LIBRARY / Universal Images Group
Title : Off Andros Island, Bahamas. File Name : 137_3150289-W.jpg ID Number : 137_3150289 Caption : Ocean hole in the coral reef creates an abyss of uncharted depths. Credit : B. Anthony Stewart / National Geographic Society / Universal Images Group
Title : VIPERFISH File Name : 138_1163979-W.jpg ID Number : 138_1163979 Caption : Deep Sea Viperfish {Chauliodus sloani} with chromatophores and bioluminescence, Atlantic ocean Credit : Solvin Zankl / Nature Picture Library / Universal Images Group
Title : Great white shark (Carcharodon carcharias) File Name : 167_4047296-W.jpg ID Number : 167_4047296 Caption : Great white shark (Carcharodon carcharias), Isla Guadalupe, Baja, Mexico Credit : Wayne Lynch / All Canada Photo / Universal Images Group
Title : Zonation of the ocean File Name : 309_365508-W.jpg ID Number : 309_365508 Caption : Zonation of the ocean. Note that in the littoral zone the water is at the high-tide mark. Credit : Encyclopaedia Britannica, Inc.
Britannica Image Quest -----------------------
Title : Bottlenose dolphin File Name : 132_1318085-W.jpg ID Number : 132_1318085 Caption : Bottlenose dolphin (Tursiops truncatus). This species of dolphin is found in warm temperate and tropical seas worldwide. Photographed in Polynesia, Pacific Ocean. Credit : ALEXIS ROSENFELD/SCIENCE PHOTO LIBRARY / Universal Images Group
Title : ANGLERFISH File Name : 138_1134806-W.jpg ID Number : 138_1134806 Caption : Angler fish {Linophryne sp} from the Mid-Atlantic Ridge, North Atlantic Ocean Credit : David Shale / Nature Picture Library / Universal Images Group
Title : GUINEAFOWL PUFFERFISH File Name : 138_1142441-W.jpg ID Number : 138_1142441 Caption : Guineafowl pufferfish (Arothron meleagris) inflated with water for defence, near coral wall, Pacific Ocean, Galapagos Islands Credit : Jeff Rotman / Nature Picture Library / Universal Images Group
Title : Sandbar shark File Name : 139_1909362-W.jpg ID Number : 139_1909362 Caption : Sandbar shark Credit : Andrew G. Wood / Photo Researchers / Universal Images Group