Baby marmoset monkeys for adoption. Marmosets are very small monkeys (about the size of a coke can) and weigh about one pound full grown. These babies wear clothes and diapers and are just as cute as can be. Marmosets are good "starter monkeys" as behavioral and aggression issues do not occur as frequently or seriously as they do with the larger primates. They are all the fun of a big monkey but with less mess, danger, responsibility, and cost. They can make very affectionate entertaining pets. We are a small USDA licensed breeder and our babies get the care they need to get off to a good start. If you are looking for a monkey to ad to your family, then contact us