Alpha male gorillas: the supreme bad boys? No, they spend much more time playing w. kids than lower-ranked males do http://www.sciencedirect.com/science/article/pii/S0003347215000871 …pic.twitter.com/F53HDwtc1P
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:) Q2, how "scalable" parenting is. E.g. maybe learning by imitation same cost w/ 1 or 5 kids, but grooming is needs 1 on 1 time (linear).
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