Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers.

In the inky blackness nearly 10,000 meters below the Pacific Ocean, scientists have discovered strange animals that may hold ...

Fossils from Qatar have revealed a small, newly identified sea cow species that lived in the Arabian Gulf more than 20 million years ago. The site contains the densest known collection of fossil sea ...

A 430-million-year-old fossil reveals that the first leeches were ocean predators, not bloodsuckers. The discovery radically shifts the timeline of leech evolution by more than 200 million years.

When novels jump to the screen, they sometimes leave a bit of themselves behind. These 10 adaptations flipped the finale, turned bad guys into good, even spared some folks from death. How’s that for a ...

The tiny pantheon known as the Asgard archaea bear traits that hint at how plants, animals and fungi emerged on Earth.

During the lockdowns of 2020, global shipping was severely restricted and ocean noise pollution all but ceased. Instead the ...

The preeminent wildlife photography competition for wacky and whimsical animals announced its winners and the results don’t ...

Some 66 million years ago, a city bus-sized terrifying predator prowled a prehistoric river ...

Fifty-nine Christmases ago, 10-year-old Andrew Penniket unwrapped a snorkel, mask and flippers. It was a transformative gift.

Last year, they were hit with a deadly virus. The year before that, starvation. What will this breeding season bring for the ...

Scientists discovered a brand-new species of sea anemone, and it's got a special relationship with a common crab.