Whats the difference between apes and monkeys? - Live Science "While monkeys are capable of complex thinking, they generally have a lower cognitive capacity than apes " Related: What did the last common ancestor between humans and apes look like?
Fossils of Earliest Old World Monkeys Unearthed Fossils of the oldest monkeys have been unearthed in Kenya, revealing the old-world monkeys coexisted with more archaic primates some 12 5 million years ago