Do Animals Laugh?
Critter News
JUNE 5, 2009
There are researchers out there who say that they do. Researchers tickled babies and six different kinds of apes, quantified their giggles, and found that the patterns fit a classic evolutionary tree. I certainly think they can laugh and have fun. I've seen it. From Cosmiclog at MSNBC. How do you graph the evolution of a laugh?
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