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Screenshot from the "Masters of Disguise" video showing a spotted octopus on the seafloor.

Video

Masters of Disguise

A humpback whale breaching in Antarctic waters.

Article

Humpback Whales in Antarctica: What Are the Whales Doing?

A female (top left) and male Photerus annecohenae. Note that females are larger than males (sexual dimorphism) and that males have bigger eyes.

Article

You Light Up My World!

A marine iguana looks off in the distance.

Audio

Marine Iguanas: One Species at a Time

Relatively slow moving, juvenile plane-head filefish Monacanthus hispidus (Monacanthidae) travel along with the algae. They pick off and eat small animals as they move around in the rotating sargassum ball. Adult filefish only grow to be about 11

Article

A World Adrift: Life in the Sargassum

A screenshot from the video showing a bioluminescent seastar.

Video

The Weird, Wonderful World of Bioluminescence

Three Killer whales (Orca) swim along side researchers.

Article

Listening for Clues About Sonar’s Effects on Marine Mammals

An adult and juvenile killer whale frolic in the water.

Article

Menopausal Moms: A Mammal Mystery

Thumbnail of a cartoonish octopus.

Video

Why the Octopus Brain is so Extraordinary

A narwhal breaches the surface, its tusk pointed to the sky

Article

Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous

A screenshot from the video showing a fiddler crab with a large claw.

Video

Claws Out: Fiddler Crabs Do Battle

Small red hyperiid.

Slideshow

The Hyper Eyes of Hyperiids: How Some Shrimp-Like Creatures See Light in the Deep Sea