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In the primate order there are 3 families and approximately 235 species. It includes humans, apes, monkeys, lemurs and other less well-known species. The word primate means “the first” and comes from earlier beliefs that these animals were superior to all others in intelligence. While it is true that non-human primates are highly intelligent, there are other animals such as whales, elephants and dolphins that are comparable in their cognitive abilities.

In the wild there are over 100 species of primates that are at risk of extinction. Habitat loss is leading to this threat.

wallaceDOB: 4/19/05
FCZS: 10/12/06
Sex: Male
Weight: 7.48 lbs.

Wallace can be identified by his unique “hairdo” that comes to a peak at the top of his head. Like his roommate Darwin, he too came to FCZS from a research facility. In his previous home he had spent time with many other monkeys, so moving in with Darwin was rather normal for him. When Wallace first arrived at the Zoo Sanctuary he was completely fascinated by dirt. Apparently he had never seen it before in his laboratory home. He also had not learned techniques for swinging on ropes, climbing rock walls or splashing in a pool. With Darwin’s demonstrations, Wallace was in no time doing all of the above. Both monkeys spend hours each day tumbling, racing, climbing, splashing and creating general mayhem in their new home in Folsom.


MonitaDOB: March 1995
FCZS: 3/8/96
Sex: Female
Weight: 1.3 lbs

Spanish for ‘little monkey’, Monita arrived at the Folsom Zoo in October 1998. Like her fellow squirrel monkeys, she had been abandoned by her mother and needed lots of special care. Monita is the most shy (or maybe most stubborn) of the FCZS troop. She is currently the only female, though plans are to add another female to the group.



OrinocoDOB: 7/26/97
FCZS: 8/11/97
Sex: Male
Weight: 2.65 lbs.

Arriving in 1997, Orinoco was one of the tiniest residents at the Folsom City Zoo Sanctuary. He weighed a mere 4 ounces and needed a great deal of care. Having been rejected by his mother at UC Davis, Orinoco arrived in an incubator and needed constant attention.

Named after one of the longest rivers in South America, Orinoco is now an adult. He has gained a bulked up, muscular body; and despite his small weight is an impressive presence within the troop.


CurleyDOB: 1998
FCZS: 2011
Sex: Male
Weight: 975 grams lbs.

Male squirrel monkey Curley was born in 1998 and came to the Zoo Sanctuary from a research facility. A member of a different sub-species (called Gothic), his facial features are different than those of the other squirrel monkeys who are designated as Roman