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octopuses

How Smart Is an Octopus?
Image: iStockphoto.com/cundaa

How Smart Is an Octopus?

Thanks to its innate intelligence, the octopus can solve complex tasks, make and use tools, and blend almost invisibly into its environment.

Investigate the wild world of the octopus. But take caution: It can live at great depths and squeeze through the smallest of holes — and it does have those eight long arms.

NOVA/PBS
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Wow! Giant Octopus

Wow! Giant Octopus

A giant octopus comes in for its close-up with a diver deep in the chilly ocean. See its graceful motion as it glides through the water. More...

Video
BBC
Octopus Photos

Octopus Photos

Go inside this photo gallery to safely view the deadly venomous blue-ringed octopus, as well as reef and mimic octopuses and many other species. More...

Images
Oceanwide Images
Scientist Profile: Octopus Trainer

Scientist Profile: Octopus Trainer

Lisa MacCartney studies the behavior of "KG," a giant pacific octopus at Underwater Adventures in the Mall of America. See how she's trained him to crawl into a bucket to get weighed. More...

Profile
DragonflyTV/PBS
Shark vs. Octopus

Shark vs. Octopus

What happens when you pit an octopus against a shark? Watch arms versus jaws in a one-round match. You won't believe it till you see it. More...

Video
National Geographic
The Ultimate Octopus Quiz

The Ultimate Octopus Quiz

Scientists have yet to unlock all the mysteries of the octopus, but you can see how your knowledge stacks up when you take this quiz. More...

Interactive
HowStuffWorks
8 Awesome Octopus Facts

8 Awesome Octopus Facts

Masters of camouflage and color changing — and big hearty eaters — octopuses have other surprising skills, too. Find out five more fascinating facts. More...

Article
Scientific American
Common Octopus

Common Octopus

Hiding in plain sight is the first line of defense for the octopus. Discover the full range of techniques it employs to avoid being attacked. More...

Article
National Geographic
Octopus Escape

Octopus Escape

The octopus may be the original shape-shifter. Watch a 600-pound octopus squeeze through a passageway the size of a quarter. More...

Video
National Geographic

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