The smallest monkey in the world is the pygmy marmoset monkey, also known as the "finger monkey" or "dwarf monkey". Its scientific name is Cebuella pygmaea. This monkey originates from the Amazon rainforest in South America, especially in countries such as Brazil, Colombia, Peru and Ecuador. Pygmy marmosets usually have a body length of around 12-15 cm and weigh around 100-140 grams. They are very small primates and are also considered to be one of the smallest primates in the world.
