Infants, but not apes help others more when they had previously been harmed by a third party http://www.amazon.com/Natural-History-Human-Morality/dp/0674088646/ref=sr_1_1?s=books&ie=UTF8&qid=1458406683&sr=1-1&keywords=tomasello …pic.twitter.com/rS6RAKzeLT
1:34 PM - 19 Mar 2016
from Berlin, Germany
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