Living as the world's smallest monkey must be hard work ... deforestation and climate change have threatened their native habitat in the Amazon and the jungles of South America.

Here are some fun facts about monkeys that make them endearing ... Pygmy Marmosets are the world's smallest monkeys Pygmy marmosets are the world's smallest monkeys, weighing just 100 to 140 ...

capping two decades of remarkable Neolithic discoveries By Peter Ross Photographs by Kieran Dodds The world’s smallest monkeys are chatty, family oriented—and facing a shrinking habitat in the ...