The longest animal on Earth isn’t what you think. It’s a drifting, gelatinous predator whose reach reshapes how we define ...

We grow up hearing that we should not judge a book by its cover or people by their appearances, and the same rule applies to ...

From whale songs to lion roars, animals have evolved to stretch their voices across distances so that friends—and sometimes foes—can hear them. Each sound is coded with messages like "Come here!" ...

Scientists are one step closer to understanding the origins of complex life on Earth after shedding new light on a mystery about our microbial ancestors. The key, they suspect, may lie in how simple ...

Sponges may be ancient, but their timeline has been murky. New research suggests the earliest sponges were soft and skeleton-free, explaining why their fossils don’t appear until much later. By ...

Scientists at MIT have found compelling chemical evidence that Earth’s earliest animals were likely ancient sea sponges. Hidden inside rocks over 541 million years old are rare molecular “fingerprints ...

The natural world is filled with extraordinary sounds, from booming rainforest calls to shockwaves deep beneath the ocean’s surface. Some animals use sound to attract mates or defend territory, while ...