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Scoop.it!
Playfulness in males signals that they are not aggressive and would not harm the mother and the offspring. So females would prefer playful and harmless males. And playfulness in females signal health and fecundity, according to Professor Chick. On this basis, adult playfulness seems to be attractive to the opposite sex. 
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Scoop.it!
From
phys
Plays well with others. There’s a reason that attribute is lauded, and it turns out to have evolutionary roots.
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Scoop.it!
Besides being fun, play is used by children as a way to practice skills and scenarios they may face in life.
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