In adorable science news, researchers have found that rats actually emit a sort of laughter when you tickle them. That's not just fun and games: the fact that rats like being tickled just as much as people do could lead to better care of lab animals—which could also mean better control of scientific experiments.
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Key Facts In This Video
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Rat "laughter" sounds at 50 kilohertz. 00:47
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Rats seem to display empathy. One rat will try to free one another from a trap even if the two rats have never interacted before. 02:13
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95% of all lab animals are mice and rats. 03:12
The Rat Tickler
Written by
Curiosity Staff
May 4, 2017
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