Animals, especially primates, have been observed to 'play laugh'.
✓ TRUE FACT
Researchers have documented laughter-like vocalizations in primates during play, and even in some other animals. It’s thought to function as a “we’re playing, not fighting” signal—social safety labeling in sound form.
🤯 "Animals, especially primates, have been observed to 'play laugh' — evolution’s earliest attempt at a sitcom."