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ticklish rats
ticklish rats
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Happy Rats? New Study Suggests They Smile With Their Ears
By
Jaimee Bruce
Rats are so much more expressive than we give them credit for. Just look to the ears.
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Study Pinpoints Rats' Tickle Center in Their Brain
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Scientists Trace Giggling, Ticklish Rats to Good Mood and 'Tickle Center' in the Brain
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