Feature Animals

Face Smarts

Humans aren’t the only animals who possess special skills with mugs

Queens of the paper wasp Polistes fuscatus recognize wasp peers by face.

M. Sheehan

By Susan Milius

- More than 2 years ago

Let’s take a minute to turn faces upside down.

At first glance, this upside-down face appears normal. But flip it right side up, and you’ll see that your face-adept brain has duped you. Warren Goldswain/Shutterstock, adapted by E.