Colossal octopus by Pierre Denys de Montfort Pen and wash drawing by malacologist Pierre Dénys de Montfort, 1801, from the descriptions of French sailors reportedly attacked by such a creature off the coast of Angola. Many of his sources for the "kraken octopus" probably described the very real giant squid, Architeuthis, proven to exist in 1857. Image in the Public Domain.
In the deepest, darkest parts of the oceans are ecosystems with more diversity than a tropical rainforest. Taking us on a voyage into the ocean -- from the deepest trenches to the remains of the Titanic -- marine biologist David Gallo explores the wonder and beauty of marine life.
The Deep Ocean by Heiko Sahling is a biologist and deep sea geoscientist at the MARUM Research Center. The area he studies is in the Indian Ocean, off the coast of Pakistan.
James Cameron releases the first ever video footage of the bottom of the Mariana Trench -- seven miles below the ocean's surface.
James Cameron's films create an unreal world all their own. In this personal talk, he reveals his childhood fascination with the fantastic -- from reading science fiction to deep-sea diving -- and how it ultimately drove the success of his blockbuster hits "Aliens," "The Terminator," "Titanic" and "Avatar."