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"So then we decided to tickle the rats ..."

submitted by maudlin

1 decade 7 years 9 months 1 week ago

From the NY Times: "Aristotle declared that humans are the only animal to laugh, but then, he never saw this video of Jaak Panksepp tickling rats. ... It seems to be a happy sound: rats will run mazes and press levers in order to be tickled, and they’ll emit the same chirp when the dopamine reward circuits in the brain are stimulated."