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From the archives of Discovery: What exactly makes food 'organic?' Learn more about organic food.

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No Safe Sex for Octopus (0:53)

Watch this Reuters video to learn more about the mating habits of Octopuses. Male octopuses mate several times a day and are fiercely protective of their females. Several days after mating, both the male and female octopus die.

Researchers Monitor Mussels (4:03)

Government researchers monitor mussels in Arkansas.

Three Facts about Octopuses (1:05)

Three questions are answered about the mysterious octopus.

The Mysteries of the Octopus (3:14)

A marine biologist demystifies the octopus.

Giant Squid Caught in New Zealand (1:27)

Watch this video showing a giant squid that was caught in New Zealand on HowStuffWorks. Local reports said early estimates put the colossal squid at about 30 feet long and weighing nearly 1,000 pounds -- about 300 pounds heavier than the next... More »

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The Lethal Cone Snail (1:20)

From the archives of Discovery: Take a close look at the Cone Snail, a tiny yet lethal undersea predator. Learn more about cone snails in this video from Discovery.

Oyster Farm (2:03)

From the archives of Discovery: What exactly makes food 'organic?' Learn more about organic food.