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SNPRC is the home to a colony of common
marmosets (Callithix jacchus).
Marmosets and tamarins are small, South American primates.
They share a number of features unusual for primates,
including small size (weighing 170-700 grams), routine
production of twins which are hemopoietic chimeras, suppressed
ovulation in many adult females, and having claws instead
of nails. In the wild, marmosets and tamarins live in
groups ranging from 5 to 15 individuals, and occupy territories
that they defend from other groups. They feed on fruit,
insects and tree sap or gum. There is usually only one
reproductive female in a group, with the other females
being inhibited from reproducing.
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