By NANCY RYERSON, IndyKids Volunteer

PHOTO: Marino Miculan
PHOTO: Marino Miculan

Macaque monkeys are raised by their moms and don’t meet their dads, who move around between groups. But when monkeys meet their fathers’ children from other mothers, they treat them like relatives, even if they’ve never been introduced to that side of the family. Researchers hypothesize that monkeys can tell when faces look similar, just like people can.