More than half a billion years ago, the Grand Canyon was not the arid landscape we know today but a shallow, tropical sea ...

So why did evolution seem to pause? We break down the latest theories,from nutrient limitations to tectonic calm,and reveal how this time laid the groundwork for the Cambrian explosion.

Deep beneath the ocean's surface, a groundbreaking DNA study reveals that the deep sea is far more globally connected than once thought. By analyzing thousands of brittle stars preserved in ...

The extraordinary burial of a teenager buried with gold jewelry and a snake- and scorpion-decorated cosmetics box has been unearthed in Iran — and it may date to more than 3,000 years ago.

Microscopic grains of alien dust buried in the sediment at the bottom of the ocean could be evidence of a comet that exploded in Earth's atmosphere 12,800 years ago.

Rather than being simple creatures on the lower rungs of the food chain, nectocaridids were powerful predators, capable of hunting and consuming other invertebrates. Their complex eyes, predatory ...

Credit: Mussini et al. An evolutionary arms race in rich waters The fossils date to between 507 and 502 million years ago, placing them within the Cambrian explosion—a pivotal era of rapid ...

A decade-long mystery surrounding the devastating sea star wasting disease along North America's Pacific coast has been solved. Scientists identified the bacterium Vibrio pectenicida as the culprit ...

A prominent shipwreck explorer and husband of one of New Jersey’s top attorneys died during a deep-sea diving expedition.

Somehow, this livestream of sea life in the South Atlantic has Argentines hooked. The researchers behind this remotely operated vehicle filming life-forms 4,000 meters (13,000 feet) undersea told The ...

Reconstruction of Nektognathus, swimming in the Cambrian Sea. Credit: Bob Nicholls Ancient predators once thought to be squids are now linked to arrow worms. The discovery highlights unexpectedly ...

WASHINGTON — (AP) — Scientists say they have at last solved the mystery of what killed more than 5 billion sea stars off the Pacific coast of North America in a decade-long epidemic. Sea stars – often ...