Donald Trump’s administration is moving to kill off two federal advisory boards dealing with the protection of…

If one thing’s clear from Jill Heinerth’s breathtaking new memoir on her life as a professional cave diver, it’s…

Nudibranchs, colloquially known as sea slugs, are some of the more eye-popping critters to grace the world’s oceans.…

Sea turtle flippers might appear to be useful for swimming and... not much else. But it turns out at least some…

Food webs might seem clear to you—grass grows in the sun, cows eat the grass, you eat the cow, you play on the…

The ocean is full of mystery. It is also full of penises. And biologists have taken note. Some marine animals look…

The wealth gap is growing. The predators continue to improve their craft, amassing wealth as they evolve to prey on…

Researchers working in the South Pacific have captured stunning footage of a deep-sea jellyfish that looks like a…

Marine biologists have discovered six new animal species in undersea hot springs nearly two miles deep in the…

Most of us, when we picture life beneath the sea, tend to focus our imaginations on the sights—shimmering schools of…

Earlier this month, a three-crew submarine dove to Cook seamount, a 13,000-foot-tall extinct volcano off the coast…

While freediving in their home of Byron Bay, Australia, photographer Tim Samuel and videographer Franny Plumridge…

This sponge could fill a room in your home. The world’s largest, it was found in the depths of the seas near the…

As a civilization we are blanketing our planet with plastic. One of the most frightening illustrations of this fact…

Two reports out this week paint an alarming future for Earth’s oceans. The first one, published by the Wold Economic…

Most of us have a vague, abstract concept of life beneath the sea. But a few men and women are dedicated to brining…

One of the largest remaining chunks of San Francisco’s Bay Bridge is coming down tomorrow, as engineers continue to…

In the Internet age, it’s easy to tell yourself you’ve seen it all. But while you’ve probably consumed a lifetime’s…

This very small (and adorable) shark is only the second of its kind ever discovered, and he’s showing scientists how…

International whaling bans have been in effect since the early 1980s, but many populations have been slow to…