Goeldi’s monkey sitting in a tree at emerald park

Goeldi’s monkey

Callimico goeldii
Conservation Status IUCN

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endangered list labels vulnerable
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    Animal Class
    Mammal, Primate
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    Inhabiting tropical rainforests, particularly those areas with thick undergrowth.
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    Omnivore – Goeldis monkeys diet consits of fruit, insects, spiders, fungi, tree sap, lates, gum and resin.
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    Conservation Status
    Vulnerable – Habitat loss is having an effect on populations.
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  • Introduction

    Geoldi’s monkeys differ from other species in the family callitrichid, as the group can be made up of more than one breeding female.

    Geoldi’s monkeys are small, tree dwelling primates, spending most of their time at least 5 meters above the forest floor.

    They have a black coat that is sometimes tipped with grey or brown. They are social animals and will live in groups of up to 12 individuals. They will communicate with each other through facial expressions, body language and vocalisations.

    Geoldi’s monkeys play an important role in the ecosystem, in which they inhabit. By eating fruits, they carry out seed dispersal and therefore contribute to the healthy growth of plants in the rain forest.

    Size: Geoldi’s monkeys are approximately 23cm in length with their tail being approximately 30cm long. They are a small monkey that can range, in weight, from 390 to 870 grams.

  • Threats/ Conservation


    It is thought that there will be a population decline of 30% or more over the next few years due to threats that the species are facing. Deforestation due to development of roads, small scale gold mining, land clearing for agriculture and habitat disturbance are all contributing to the decrease in population.

    Over 75% of their population can be found in Peru.

    Emerald Park conservation contribution:


    Geodis monkeys are part of the EAZA Ex-situ Programme (EEP). This means that their population is managed to ensure that there are heathy individuals within EAZA member zoos should there be the requirement of reintroductions, to the wild, in the future.

  • Habitat

    Goeldi’s monkeys are found in the western Amazon basin in Brazil, Bolivia, Peru, and Columbia. Their distribution within this territory is fragmented.

    They will inhabit tropical rainforest with thick undergrowth that have a wide variety of their preferred food.

  • Fun Facts

    Geoldi’s monkeys will cooperate when raising young. Individuals in the group, called ‘Helpers’, will share in the carrying the infant until he or she can move independently. This usually occurs when the youngster is approximately 42 days old.

    Observations of Geoldi’s monkeys in the wild have shown that they will travel and forage with other species such as the Red-bellied tamarin.