"Reconstructing the New World Monkey Family Tree: After Landing in Americas, Primates Spread as Far as Caribbean, Patagonia..."We know from molecular studies that the monkeys have their closest relatives in Africa and Asia -- but that doesn't explain how they got to South America, just that they did,"
The Cotton-top Tamarin (Saguinus oedipus) is a small New World monkey weighing less than 0.5 kg (1.1 lb). One of the smallest primates, the cotton-top tamarin is easily recognized by the long white sagittal crest extending from its forehead to its shoulders. The species is found in tropical forest edges and secondary forests in northwestern Colombia where it is arboreal and diurnal
Brown Spider Monkey - Habitat loss is ongoing within its range, and an estimated 98% of its habitat already is gone. It is also threatened by hunting (in some regions it is the favorite game) and the wild animals trade. The brown spider monkey is among "The World's 25 Most Endangered Primates", and is one of only two Neotropical primates (the other being the yellow-tailed woolly monkey) to have been included in this list in both 2006-2008 and 2008-2010.[
Silvery Marmoset - Mico argentatus - A member of the family Callitrichidae, this New World monkey lives in the eastern Amazon Rainforest in Brazil. Originally rainforest inhabitants, plantations have caused them to increase their range. This primate is diurnal and spends the night in tree hollows or in very close vegetation
White-faced Saki. [The white-faced saki, also known as the Guianan saki and the golden-faced saki, is a species of saki monkey, a type of New World monkey, found in Brazil, French Guiana, Guyana, Suriname and Venezuela.]