The dropping moth populations in remote areas indicate a "new era" of ecological collapse, according to ecologists. For some ...

Proteins are life's molecular workhorses, doing everything from turning sunlight into food to fighting viruses. They are ...

Scientists found a 247-million-year-old reptile, Mirasaura grauvogeli, with a feather-like crest that lived in trees.

A fossilized brain from a 500-million-year-old sea creature shows unexpected spider-like features, hinting that spiders and their kin may have evolved in the ocean—not on land.

Half a billion years ago, a strange sea-dwelling creature called Mollisonia symmetrica may have paved the way for modern ...

A 500-million-year-old fossil challenges everything we know about spider evolution.

In the rodent family tree, deer mice separated from the ancestors of house mice and rats about 25 million years ago. By some ...

“The sea slug Elysia chlorotica is a small, unassuming creature that performs a remarkable feat: It eats algae and steals its ...

In the long history of life on Earth, one of the biggest turning points came when our distant ancestors stood tall—literally.

Body coverings such as hair and feathers have played a central role in evolution. They enabled warm-bloodedness by insulating ...

Two closely-related species of deer mice have evolved very different responses to aerial predators thanks to tweaks in deep brain circuitry.

The Orion Nebula, the Pleiades and the Hyades open clusters could represent the different phases of star clusters: baby, ...