"the fly became a marmoset"
are any of the 25 New World monkey species of the biological family Callitrichidae. Most marmosets are about 20 centimetres (8 in) long. Relative to other monkeys, they show some apparently primitive features, like claws rather than nails, and tactile hairs on their wrists. Marmosets are highly active, living in the upper canopy of forest trees, and feeding on insects, fruit and leaves.