Non-parents expand 'facial dexterity' in caring for infants among primates

Non-parents expand the range of their facial expressions in caring for infants among primates. The study shows the ability, among non-relatives, to both decipher facial expressions and to be attuned to others' emotional states, revealing the evolutionary nature of communication.

from Relationships News -- ScienceDaily https://www.sciencedaily.com/releases/2021/05/210526115510.htm