A sense of humor is a characteristic that many of us assume is only found among humans. However, according to Live Science, our primate relatives — chimpanzees, bonobos, gorillas, and orangutans — all produce laughter-like sounds when tickled.
Koko, the gorilla that knew sign language, would tie her trainer's shoes together, sign, "chase," and then laugh.
So, who knows? Ants and spiders may share their own jokes that we have no idea about. And it'd be hard for a giraffe or puffer fish not to laugh from time to time given their looks.
Don't get me started on hyenas.
- 14 award-winning photos show what happens when nature gets silly ... ›
- A contest was held to find this year's funniest animal photo. Here are ... ›
- 20 Finalists for the 2019 Comedy Wildlife Photography Awards ›