Cephalopods

Japanese scientists videotaped this female giant squid, alive, at the water's surface

Giant Squid

Giant squid live up to their name: the largest giant squid ever recorded by scientists was almost 43 feet (13 meters) long, and may have weighed nearly a ton. You’d think such a huge...

Quest for the Giant Squid

Watch a Discovery video on Smithsonian squid expert Clyde Roper’s search for giant squid in Kaikoura Canyon off the coast of New Zealand. More about giant squid can be found in our Giant Squid...
Illustration of a giant squid versus a merman.

From Mermen to Architeuthis, Our Fascination with the Giant Squid

Humans have long been captivated by what we now call the giant squid ( Architeuthis ). This image gallery gives a glimpe into our fascination with the animal. For a long time, people saw...
An illustration of a giant squid (Architeuthis dux)

Giant Squid: One Species at a Time

How do you get two dead giant squid the size of a school bus from a fishing boat in Spain to Smithsonian’s National Museum of Natural History in Washington, D.C.? Call in the U.S...

Clyde Roper: Squid Hunter - Eyeball to Eyeball

Dr. Clyde Roper, squid expert, explains how he developed a passionate interest in the giant squid ( Architeuthis dux) in this excerpt of "Eyeball to Eyeball," an episode of Errol Morris' First Person television...

Clyde Roper: Squid Hunter - Architeuthis

Dr. Clyde Roper recounts the tale of his encounter with a giant squid specimen ( Architeuthis dux) that was found washed up on a Massachusetts beach in this excerpt from "Eyeball to Eyeball," an...
A tiny yellow goby living inside an abandoned can on the seafloor; Suruga Bay, Japan

Image Gallery: The Perfect Underwater Photo

For nearly 35 years, National Geographic photojournalist Brian Skerry has been immersing himself in the big blue to get the perfect underwater photograph. He admits that there will never will be a "perfect" photo,...

Clyde Roper On the Over-Sized Anatomy of the Giant Squid

Dr. Clyde Roper discusses the fascinating anatomy of the giant squid ( Architeuthis dux) in this excerpt of "Eyeball to Eyeball," an episode of Errol Morris' First Person television series. Watch Architeuthis and Eyeball...
The elusive giant squid

Reflections on the Successful Search for the Giant Squid

This still of a giant squid is from the first video filmed of the species in its natural habitat. Credit: NHK/NEP/Discovery Channel I have been at the Smithsonian’s National Museum of Natural History since...
Squid at Sunset Reef Grand Cayman, Cayman Islands

Stunning Squid Pictures

From the giant squid to microscopic squid babies, squids are beautiful and fascinating. As cephalopods, the same family as octopuses and cuttlefish, they have no bones, and swim head-first through the water with their...

Masters of Disguise

Octopuses are colorblind, but manage to blend into the background seamlessly—or stand out in bright color to startle their enemies. So how do they do it? That's the question Roger Hanlon of the Marine...
A blue-ringed octopus

How Octopuses and Squids Change Color

Video of Where's The Octopus? by Fox Meyer Squids, octopuses, and cuttlefishes are among the few animals in the world that can change the color of their skin in the blink of an eye...
Two nautiluses in the open ocean off the coast of Palau.

A Couple of Nautiluses

These two nautiluses ( Nautilus belauensis ) are pictured off the coast of Palau in the Pacific Ocean. There are six living species of nautilus who live in chambered shells. As they get bigger,...

Why the Octopus Brain is so Extraordinary

An octopus is a lot brainier than you might imagine considering one of its closest living relatives is a sea slug. In fact, some scientists argue it could be the first intelligent being on...
Common cuttlefish

So You Think You're Smarter Than a Cephalopod?

Like other cephalopods, the common cuttlefish ( Sepia officials Linnaeus, 1758) possesses serious brain power. Credit: Hans Hillewaert, WoRMS for SMEBD The blanket octopus can rip a poisonous tentacle from a Portuguese man-o-war and...

The Dumbo Octopus: An Underwater Dance

This short video takes you two hundred miles off the coast of Oregon and some 6,600 feet below the water's surface to observe the Dumbo octopus ( Grimpoteuthis bathynectes ). Little is known about...