DK Find Out! Primates
DK

Primates are a group of mammals that includes monkeys, apes, lemurs, bushbabies, and lorises.

Short Wave: Mirror, Mirror, On The Wall - Can You Reveal An Animal's Inner World At All?
Short Wave (NPR)

Daniel Povinelli was in high school when he first read about a clever experiment, published in 1970, that showed chimpanzees—but not monkeys–can recognize themselves in mirrors.