The language of play: Hyenas use facial expressions and vocalizations to de-escalate‎

Scientists observed spotted hyenas (Crocuta crocuta) playing in the wild and found that their precise, sophisticated communication is on par with that of many primate species. Hyenas play and romp with one another at all stages of life. Although juveniles play more frequently than adults, the joy of play can also be observed in adults. Interestingly, adult hyenas appear to particularly enjoy playing in water.