21. She discovered that chimps will systematically hunt and eat smaller primates such as colobus monkeys. 22. Another remarkable behavior occurs when red colobus monkeys reach their restless and somewhat nomadic adolescence. 23. When it first opened, the exhibit featured capuchin, colobus , and spider monkeys. 24. Crowned eagles prefer to prey on infants and young juveniles of the Ugandan red colobus . 25. The red colobus species have a smaller larynx compared to other members of the Colobinae subfamily. 26. For example, red colobus monkeys exhibit mobbing when threatened by chimpanzees, a common predator. 27. Another characteristic of the chimpanzee that Goodall discovered was their cooperative hunting of red colobus monkeys. 28. The Zanzibar red colobus , " conservation in Zanzibar, from the mid-1990s. 29. Recently, he received a photo from an associate in Africa that shows a dead red colobus . 30. "It is smack dab in the middle of the ( colobus ') historical distribution.