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A baby octopus moves across the sea floor

Odd Octopus: What It's Like to Be a Clever 8-Armed Creature

By Megan Gannon published

To learn more about the smartest invertebrates on Earth, LiveScience caught up with Katherine Harmon Courage to talk about her new book "Octopus! The Most Mysterious Creature In the Sea."

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octopus baby

Squee! Octopus Hatchling Spotted by Deep-Sea Explorer

By Becky Oskin published

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Argonaut octopus

Rare Discovery: Tropical Octopus Caught in Los Angeles

By Becky Oskin published

Female argonaut recuperating in marine aquarium.

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An octopus on the sea floor, looking surprisingly like a conch shell.

Octopus Foils Predators by Stealing Identities

By Jennifer Welsh published

An octopus will turn itself into a conch shell or coral reef to avoid being eaten.

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cold water adaptation, extremophiles, cold water octopus, Antarctic animals, living in freezing water,

How Octopi Deal With Chilly Waters

By Jennifer Welsh published

Instead of changing their genes, octopi 'edit' their RNA intermediates to survive in colder waters.

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The jawfish (red arrow) mimics an octopus that mimics fish.

Tiny Fish Filmed Mimicking Octopus That Mimics Fish

By Charles Q. Choi published

A circular game of copycat under the sea.

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The National Zoo's new Giant Pacific octopus, saying hello to the crowd during its naming ceremony.

Smithsonian's New Giant Pacific Octopus Named

By Live Science Staff published

New name matches the octopus's curious nature.

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Japetella heathi octopus and a species of squid switch from transparent to opaque camouflage.

Transparent Octopus Goes Opaque in Blink of an Eye

By Stephanie Pappas published

Some octopus and squid species can go from clear to opaque in an instant.

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Missing Image for

Squidward, It's You! An Octopus Knows Who's Who

By Wynne Parry published

It's not clear how, but an octopus can remember other octopuses.

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Mystery of the Floating Octopus Solved

By Wynne Parry published

A female argonaut octopus traps air in her paper shell to control her buoyancy, research shows.

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