Rats "Laugh" With Ultrasonic Chirps When Tickled

While inaudible to the human ear, rats emit high-frequency vocalizations (50-kHz chirps) when tickled or engaged in play. These sounds are associated with positive emotional states, similar to human laughter, indicating joy.

Source

https://www.nature.com/articles/nn.1351

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Published: March 29, 2026
views: 72

Fun Animals Biology Weird Rats Animal Behavior Laughter Tickling Ultrasonics Neuroscience

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