Japan TV films real-life Kraken!

Scientists and broadcasters have captured footage of an elusive giant squid, up to eight meters (26 feet) long that roams the depths of the Pacific Ocean.

Japan's National Science Museum succeeded in filming the deep-sea creature in its natural habitat for the first time, working with Japanese public broadcaster NHK and the US Discovery Channel.

The massive invertebrate is the stuff of legend, with sightings of a huge ocean-dwelling beast reported by sailors for centuries.

The creature is thought to be the genesis of the Nordic legend of Kraken, a sea monster believed to have attacked ships in waters off Scandinavia over the last millennium.

And from the exciting world of marine biology, scientists think evolution has given giant squids excellent eyesight.

The streamlined giant squid (various species of Architeuthis) and the much chunkier colossal squid (Mesonychoteuthis hamiltoni) can both grow to more than 10m long, as measured from the tip of the body to the end of their tentacles.

The colossal squid especially is equipped with a fearsome arsenal of weapons, including barbed swivelling hooks.

Scars on whale believed to have been caused by Giant Squids

Scars on the bodies of sperm whales indicate that they regularly do battle with the colossal squid, at least in the Southern Hemisphere waters where it lives.

And the number of colossal squid beaks found in the stomachs of sperm whales indicate that the latter often win.

Though colossal squid are encountered remarkably rarely by people, they are thought to make up about three-quarters of sperm whales' diet in the Southern Ocean.

Whereas the whales can spot squid using sonar, the squid can deploy nothing except vision - which suggests there would be a powerful evolutionary pressure towards developing effective eyes.


More at BBC News

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