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Geoffroy’s Marmoset

Callithrix geoffroyi

Henry Vilas Zoo Geoffroys Marmoset
About

You’ll know a Geoffroy’s marmoset when you see one! These distinct monkeys are not only known for their white cheeks, forehead, and throat, but also for their dark ear tufts. Many of their features, such as their claws, are highly unusual among primates.

Habitat: Geoffrey’s marmosets are found in the lowland rainforests of Brazil.

Diet: Their omnivorous diet (eating both plants and animals) includes fruits, flowers, nectar, lizards, frogs, and spiders. They also consume a variety of tree saps and gums, a type of tree sugar.

Family Life: Marmosets are highly social creature and commonly live in groups of eight to ten, led by a dominant female. They are one of the only species of monkeys/apes that frequently give birth to twins. After the offspring are born, many members of the pack, including males, help raise them.

Henry Vilas Zoo Geoffroys Marmoset
Conservation

The Geoffroy’s marmoset’s endangered status is in the least concern category.

Henry Vilas Zoo Least Concern Graphic
Henry Vilas Zoo Geoffroys Marmoset
Threats
  • The main threat to the Geoffroy’s marmoset is habitat loss. The destruction of their forest habitat causes their population to be fragmented and separated from other mating partners.
  • Like other small primates similar to this species, the Geoffroy’s marmoset is sold in the illegal pet trade.
Henry Vilas Zoo Geoffroys Marmoset
Fun Facts
  • After offspring are born, the father carries them non-stop for two weeks.
  • The greatest threat to marmosets is habitat destruction.
  • They have special incisors, or narrow-edged teeth at the front of the mouth, that help them carve small holes in trees to access sap and gum.
Henry Vilas Zoo Geoffroys Marmoset
Quick Facts

CLASS: Mammalia (mammals)
ORDER: Primates
FAMILY: Callitrichidae (New World monkeys)
GENUS: Callithrix (New World monkeys)
SPECIES: Callithrix geoffroyi (Geoffroy’s marmoset)
LIFE SPAN: 10 years
SIZE: 7.8 inches (19.8 cm)
WEIGHT: 8 – 19 ounces (0.2 – 0.5 kg)
TAIL LENGTH: 11.4 inches (28.9 cm)

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