apes playfully tease each other just like humans

Joking around is a key element of human interaction — one that starts emerging in babies as young as 8 months old, before they can even speak. Now, a new study is suggesting that the human instinct to play goes further back than previously thought.

An international team of cognitive biologists and primatologists documented playful teasing in the four species of great apes: orangutans, chimpanzees, bonobos, and gorillas. They identified 18 distinct teasing behaviors, indicating that “the prerequisites for humor evolved in the human lineage at least 13 million years ago,” per a press release.

“Similar to teasing in children, ape playful teasing involves one-sided provocation, response waiting in which the teaser looks toward the target’s face directly after a teasing action, repetition, and elements of surprise,” explained lead author Isabelle Laumer.

The concept of playful primates isn’t new — Jane Goodall previously documented such behavior — but this is the first study to systematically analyze it. “We hope that our study will inspire other researchers to study playful teasing in more species in order to better understand the evolution of this multifaceted behavior,” Laumer said.

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“the very essence of playfulness is an openness to anything that may happen,

the feeling that whatever happens, it’s okay…

you’re either free to play, or you’re not.”

-john cleese

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source credits: Proceedings of the Royal Society, Laumer, Winkler, Rossano,  Cartmill

photo credit: anup shah, getty