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Small red hyperiid.

Slideshow

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

A coral has just spawned. Each of the hundreds of polyps releases a small pink bundle of sperm and eggs.

Article

A Tale of Sex and Stress in the Ocean

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!

This male dancing fiddler crab (Uca terpsichores) has built a sand “hood” at the entrance to his burrow, which he hopes will attract females to his humble abode—as if that big beautiful claw of his weren't enough!

Article

The Design of a Beautiful Weapon

A school of bluefin tuna

Article

The Great Pacific Migration of Bluefin Tuna

A beaked whale at the ocean's surface

Article

Seeing with Sound: Acoustic monitoring of beaked whales

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 blue-ringed octopus

Article

How Octopuses and Squids Change Color

Giant Pacific Manta Ray, Roca Partida Sea Mount, Revillagigedos Islands, Mexico

Article

Tagging and Tracking Animals Underwater

A school of mahi mahi.

Article

From Larvae to Adults – Finding Impacts of an Oil Spill on Mahi-Mahi