Kylee Williams- Resus Monkey By danasnyder820 Jan 1, 1932 First Found The Rhesus Monkeys were discovered in 1932 during the shooting of Tarzan Jan 2, 1950 Most in the Lab the Rhesus Monkeys where once the most common in labrotory primate in the 1950 Jan 1, 1986 Population is Growing By 1986 there where 350 Rhesus Monkeys running wild in Florida