Lacey and Cleo have their own TV, allowing them to watch cartoons at their leisure. Generally, black-capped Capuchins are social creatures, and roam South America in large groups led by one alpha male.
Ricci makes bath time lots of fun with a soft scrub in the kitchen sink. Though the small monkeys can appear gentle, they can still pose a threat to their people. “They are wild animals, and they bite,” says Kari Bangall, founder of the Jungle Friends Primate Sanctuary, in My Child Is a Monkey.
Cleo – in a pint-sized diaper and sweater – poses for a shot at just 1 month old (she’s 3 years old now). Capuchin babies can cost $5,000 or more when purchased through breeders, but adults are considerably less expensive.
Lacey, then 1, gets to know her little sis. Trained Capuchins can actually assist humans in ways similar to dogs, performing easy motor tasks for physically-challenged owners, like Marine Cpl. Tim Jeffers, whom PEOPLE profiled in February.