The search is on for a family's rare pet monkey which was stolen during a burglary at their caravan home.
A marmoset monkey in India
Police think Manuel, a common marmoset, may have been stolen to order from the caravan site in Newark, Nottinghamshire because nothing else was taken.
Manuel's owners are really upset and worried about him because he needs to have a special diet to stay healthy.
Pet marmosets are quite rare in Britain and the RSPCA says that means they can be sold for quite a lot of money.
Manuel has greyish fur with two white tufts of hair at the sides of his head and a white blaze on his forehead.
He is likely to be very frightened and may become aggressive if handled by strangers, police warned.