Youngsters mimic mothering by cradling sticks
Deep in a Ugandan forest, Betsy Wetsy has gone wild.
A new study finds that young females in one group of African chimpanzees use sticks as dolls more than their male peers do, often treating pieces of wood like a mother chimp caring for an infant. In human cultures around the world, girls play with dolls and pretend that the toys are babies far more than boys do.
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