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Monkey Moms Have Madonna Moments
from ScienceNOW Daily News
It's a look that's been painted and photographed untold times: a mother gazing deep into her infant's eyes while the two smile and kiss. Psychologists believe this interplay helps a child's emotional and cognitive development. The behavior was thought to exist only in humans and to a lesser extent in our closest kin, chimpanzees. Now, scientists have discovered similarly intense shared gazing and facial expressions in monkeys. And that means, the researchers say, that this kind of maternal communication dates back at least 30 million years.
Although scientists have studied rhesus macaque monkeys (Macaca mulatta) in the lab and field for more than 50 years, they missed this key behavior. "Previous researchers were looking more at what happens when a mother and infant are separated," says Pier Francesco Ferrari, a neuroscientist at the University of Parma in Italy, not what happens when they're together.
But plenty occurs between the two, as Ferrari and his team observed. In a semi-free-range environment at the Laboratory of Comparative Cognition, part of the National Institutes of Health in Bethesda, Maryland, the scientists filmed 14 mother-and-infant pairs during the first 2 months of the youngsters' lives, beginning when the infants were a few hours old.
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