Animal Behavior

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Animal Behavior Articles

A marine iguana looks off in the distance.

Marine Iguanas: One Species at a Time

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

A Tale of Sex and Stress in the Ocean

Three Killer whales (Orca) swim along side researchers.

Listening for Clues About Sonar’s Effects on Marine Mammals

Like other cephalopods, the common cuttlefish (Sepia officials Linnaeus, 1758) possesses serious brain power.

So You Think You're Smarter Than a Cephalopod?

An adult and juvenile killer whale frolic in the water.

Menopausal Moms: A Mammal Mystery

Phoenix swimming with her calf.

Scientists Use Bioacoustics to Protect Marine Mammals

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

Tagging and Tracking Animals Underwater

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

A World Adrift: Life in the Sargassum

A Caribbean hermit crab (Coenobita clypeatus) crawls on the forest floor.

The Great Hermit Crab Migration

A humpback whale breaching in Antarctic waters.

Humpback Whales in Antarctica: What Are the Whales Doing?

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!

The Design of a Beautiful Weapon

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

Claws Out: Fiddler Crabs Do Battle

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