Mental Floss

PSYCHOLOGY

















Who wouldn't be screaming in this situation?

Our ancestors may have predisposed us to fear spiders, insects, and other many-legged creatures, but there's a lot more to it.

Ellen Gutoskey




A baby's laugh can offer a lot of insight into their development.

Tiny people giggle at everything from tickling to peek-a-boo to silly faces. But do they really have a sense of humor?

Jake Rossen