Most marmosets are about 20 centimetres (8 in) long. Relative to other monkeys, they show some apparently primitive features: they have claws rather than nails, and tactile hairs on their wrists. They lack wisdom teeth, and their brain layout seems to be relatively primitive
Marmosets live in family groups of three to 15, consisting of one to two breeding females, an unrelated male, their offspring and occasionally extended family members and unrelated individuals.
Taken at Wingham Wildlife Park, in very dark conditions.