1. Gestation in the Old World monkeys lasts between five and seven months. 2. The divergence of Old World monkeys and apes has been dated to to. 3. Asian Old World monkey malaria parasite species infect both colobine and macaque monkeys. 4. The three types are : Old World monkeys , New World monkeys and Apes. 5. These colobine Old World monkeys , native to Southeast Asia, have an extremely striking appearance. 6. Hanuman langurs ( or gray langurs ) are an Old World monkey found in India. 7. However, even among primates, full color vision differs between New World and Old World monkeys . 8. Unlike the other subfamily of Old World monkeys , the Cercopithecinae, they possess no cheek pouches. 9. This Old World monkey is diurnal and spends most of the day in the trees. 10. Old World monkeys and Hominoidea emerged within the catarrhine monkeys some 25 millions years ago.
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