How old is the laugh? Well, it’s a funny story...

Laughter, it turns out, originated at least 10 million years ago. Among apes. See which other species enjoy a chuckle and why the guffaw survived.

How old is the laugh? Well, it’s a funny story...
Laughter, it turns out, originated at least 10 million years ago. Among apes. See which other species enjoy a chuckle and why the guffaw survived.