The pygmy marmoset, also known as the dwarf monkey, holds the title of the world's smallest monkey. Native to the rainforests of the western Amazon Basin in South America, it weighs a mere 100 to 140 grams and measures around 12 to 15 centimeters in body length, with a tail that can extend up to 20 centimeters. #monkey #dwarfmonkey #pygmymarmoset #adorable | Brut