National Geographic Videos

August 2, 2010—The Census of Marine Life has released the most comprehensive inventory of ocean life ever created. See some of the deep-sea stars of the "roll call," and find out which regions are the most diverse—and threatened.

November 6, 2009—Along the coast of Abu Dhabi, development is spilling into the sea, smothering the sea grass beds that nourish rare marine mammals called dugongs.

November 11, 2009—Male club-winged manakins vibrate their wings to create violin-like sounds to impress females, a new study says.

November 17, 2009—Uncovering another link between chimpanzees and humans, a new study found chimps gesture mainly with their right hands. This indicates the chimp brain's left side is used in communication, as in people.

November 19, 2009—Five ancient crocodile ancestors, two previously unknown, have been uncovered in the Sahara by a National Geographic researcher and his team. The most imposing, BoarCroc, had triple fangs and likely could have taken down a dinosaur.

November 22, 2009—A football octopod and a piglet squid are just a few of the bizarre deep-sea creatures uncovered during the ten-year Census of Marine Life, which ends in 2010.

November 22, 2009—Oil-eating tubeworms and 15-tentacled sea cucumbers are among the 5,000 deep-dwelling species identified by the Census of Marine Life, a ten-year effort to chronicle life in the deep ocean.