Mollusks appeared 540 million years ago, but almost half the unique traits of this group evolved in the first 96 million years. Since then, the rate of evolutionary innovation has slowed and become ...

Evolution is often imagined as a steady process of gaining new abilities, but in reality it also involves losing traits that are no longer useful. Across the natural world, animals have abandoned ...

Animals don't just see the world differently from one another, they experience time itself at dramatically different speeds. That is according to a new study that considered 237 species across the ...