Scientists Confirm That Rats Love To Have Their Bellies Tickled
September 7, 2020
A team of researchers with the University of Bern in Switzerland has found that as part of feeling happiness, rats undergo a slight physical change by lowering their ears.
Prior research has suggested that rats like to have their bellies tickled — they come back for more and emit a noise (in a range too high for humans to hear) that some researchers have compared to laughing. Because of that, the researchers use tickling as a basis for testing happiness in rats.
Exhibit A:
Rats like belly rubs
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