The deep-sea dwelling vampire squid could have 100 times more sex than its shallower-residing relatives.
Mysterious creatures likely use skin color changes for interaction with other squid as well as for camouflage.
Two Humboldt squid, flashing an angry red, take on a submersible containing Greenpeace divers on an expedition in the Bering Sea.
Creature thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic.
The rare deep-sea dweller was found 100 miles offshore and weighed 200 pounds.
Catch a glittering glimpse of photos from the most complete audit yet taken of marine life in the Antarctic Ocean.
Lasting feelings of pain or anxiety after an injury may seem perplexing, but they serve an evolutionary purpose, research suggests.
Some of the world's most unique tentacled creatures get the spotlight in a new exhibit.
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