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.
What's Good For Rats Is Good For Science
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Key Facts In This Video
Rat "laughter" sounds at 50 kilohertz. 00:47
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
95% of all lab animals are mice and rats. 03:12
The Rat Tickler
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