You’d probably walk past a chiton without even seeing it. These creatures often look like nothing more than another speck of seaweed on the crusty intertidal rocks. But it sees you. At least, if it’s ...

You’d expect the hardest teeth in nature to belong to sharks, crocodiles, or some ancient dino. But surprisingly the title goes to a slow-moving, algae-scraping mollusc called the chiton. This ...

Biologists have often wondered what would happen if they could rewind the tape of life’s history and let evolution play out all over again. Would lineages of organisms evolve in radically different ...