Wednesday, May 23, 2012

Giant Squid

The giant squid is massive and when full grown can be at least 33 feet (10 meters) long. These mysterious eight-armed creatures are rarely seen by humans. Most of what we know about them comes from finding them washed up on beaches. The largest of these hard-to-find giants ever found measured 59 feet (18 meters) in length and weighed nearly a ton (900 kilograms).
More recently, in 2004 researchers in Japan took the first images ever of a live giant squid. And in late 2006, scientists with Japan's National Science Museum caught and brought to the surface a live 24-foot (7-meter) female giant squid.
Giant squid, along with their cousin, the colossal squid, have beach ball size eyes! Their eyes are the largest eyes in the animal kingdom and are about 10 inches (25 centimeters) in diameter. Their big eyes help them see better underwater! They are able to spy objects in dark depths where most other animals would see nothing.

Like other squid species, they have eight arms and two longer whip-like tentacles that help them bring food to their beak-like mouths. Their diet likely consists of fish, shrimp, and other squid, and some suggest they might even attack and eat small whales.
They maneuver their massive bodies with fins that seem too small for the rest of their bodies. They use their funnel as a propulsion system, drawing water into the mantle, or main part of the body, and forcing it out the back.
Scientists don't know enough about these beasts to say for sure what their range is, but giant squid carcasses have been found by fishermen in all of the world's oceans.

Fast Facts
The scientific name for the giant squid is Architeuthis dux.

Giant squid are carnivores.

Giant squid leave sucker mark scars on mouths of whales as they try to avoid being swallowed.
A full grown giant squid is usually about 33 feet (10 meters) long. A giant squid would reach the water if held from the top of an Olympic diving platform!
Giant squid can weigh about 440 pounds (200 kilograms)

A giant squid's lidless eye can be as big as a dinner plate or a beach ball.

Giant squid can change colors.

They are the biggest invertebrates on Earth.
Photograph courtesy Tsunemi Kubodera of the National Science Museum of Japan/AP

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