Anatomy

No one has ever seen an intact colossal squid before! A team of scientists examined the unique features of this huge mollusc, inside and out.

Meet the colossal squid - from its eyes the size of soccer balls to its awesome, rotating tentacle hooks.

Find out more through articles, images, and videos.

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The body of the
colossal squid

Find out about the body of the colossal squid - the largest invertebrate in the world... read more

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The beak of the
colossal squid

The colossal squid has a sharp, bird-like beak that slices 2-metre-long Antarctic toothfish into small chunks... read more

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The arms and tentacles

Eight arms and two tentacles - very good for grabbing... read more

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Colossal squid -
the inside story

Scientists haven't been able to dissect any complete colossal squid specimens. The insides of a colossal squid are still a bit of a mystery... read more

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The eye of the colossal
squid - the largest animal eyes known

Vision is very important to colossal squid... read more

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How the colossal
squid swims

Nobody has ever seen a live colossal squid swimming so this is a difficult question to answer... read more

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How the colossal
squid feeds

The colossal squid is a predator, and it hovers in the dark depths of the ocean looking for prey... read more

Biology of the colossal squid

Biology of the colossal squid

Find out about the habitat, reproduction and numbers of the colossal squid... read more

Colossal squid, giant squid, and octopus

Colossal squid, giant squid, and octopus

Find what the differences are between the colossal squid, giant squid, and octopus... read more