Scientists used DNA floating in just 30 liters of seawater to count the endangered whale shark across two oceans.

When an animal’s body consists almost entirely of leg, its biology gets really weird.

The ocean is more than dim and blue.

The country is facing a monkey shortage.

Home to vibrantly colored, tiny creatures, the ecosystems floating on the ocean’s surface remain all but unknown.

Polynesians brought chickens’ wild ancestors to the islands. Europeans brought domestic chickens. Now they’ve mixed, and are everywhere.