The 2021 film "My Octopus Teacher" swept the world with its touching story of a South African man who befriends a wild octopus while free diving in a kelp forest. Millions of filmgoers were charmed ...

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A newly discovered tiny blue octopus from the Galápagos is a striking reminder that the deep ocean still holds countless secrets.

Octopuses are brainy creatures with sophisticated smarts, and now scientists have uncovered a clue that may partly explain the cephalopods' remarkable intelligence: Its genes have a genetic quirk that ...

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Researchers exploring an underwater mountain in Hawaii's deep sea recently stumbled across a rare, "ghostly" dumbo octopus — one of the deepest dwelling octopuses on Earth — flapping its large ...

Octopuses in the Red Sea often hunt together with other predatory fish—and sometimes hit them. New videos suggest they're keeping fish in line. Day octopuses in the Red Sea team up with up fish to ...