When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When baby rhesus monkeys want to suckle, they do what human infants do: cry, cry, cry. Mothers ...
Kim A. Bard, a reader in comparative developmental psychology at the University of Portsmouth, explains. This is an interesting question and one that is very well phrased. Humans are primates and it ...
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