Booper

Booper is a monkey in Skull-Head's troop. She was one of Teeny's first friends; at the time, Booper was obsessed with babies, and Teeny at six months old was so small, Booper mistook her for a newborn.

Eventually, Booper figured out that Teeny was older than she appeared, and focused her attention on actual newborns.

Ironically, when Booper got older, she became more of a bully to monkeys of lower rank.