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Geoffroy’s marmoset

Callithrix goeffroyi

Geoffroy’s marmoset

Geoffroy’s marmosets are a small New World monkey, a term which describes monkeys from South and Central America. They can be found in the rainforests of Brazil.

These primates are also known as tufted-ear marmosets, thanks to their small black ear tufts.

This marmoset is a sociable species. They live in groups which consist of a dominant female, her mate (who stays with her for life) and their offspring. Females usually give birth to twins and juveniles and young adults help with the parental care.


Diet - Omnivore
Geoffroy’s marmosets eat mostly fruit, but will also eat tree gums and like to catch small invertebrates.

Geoffroy’s marmosets can measure up to 19 centimetres (cm) and their tails can be up to 29cm. They can weigh up to 350 grams.

Geoffroy’s marmosets live in secondary or tropical lowland forests in Brazil.

Conservation status
The IUCN believes that this marmoset faces a high risk of extinction in the wild. The species is also listed under Appendix II of CITES.

Populations of Geoffroy’s marmosets are being fragmented due to a loss of habitat. They are also hunted and captured for the illegal pet trade.

Current population
The population of Geoffroy’s marmosets is declining but there has not been enough research carried out to determine how many are still living in the wild.

Zoo population
There is an EPP for Geoffroy’s marmosets. There are more than 390 living in zoos around the world.