Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to inspect and remove the spots—far faster than seen in earlier tests. Even more ...

For years, scientific divers at a research station in the Mediterranean Sea had a problem: at some point in every field ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. As more species are admitted into the “smart” animals club ...