Deep in South American rainforests lives the pygmy marmoset, the world's smallest monkey. This tiny primate, weighing just 119 grams, thrives along riverbanks. Its unique diet of tree sap and insects, ...

Deep in the rainforests of South America lives a monkey so tiny it can fit in your palm. Known as the pygmy marmoset, this remarkable primate holds the title of the world’s smallest monkey. Weighing ...