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Pygmy Marmosets are the smallest monkey in the world. Mogo Zoo has successfully bred a number of Pygmy Marmoset offspring

Quick Facts

Weight: 100-180gms

Size: body length 12-15cm

Number of offspring: 1-3 infants, usually fraternal twins

Gestation: 5 months

Maturity: 1-1.5yrs

Lifespan: 10-12yrs

Predators: birds of prey, small cats and snakes


Pygmy marmoset

Callithrix pygmaea


Largely restricted to river-edge forest and mature evergreen forest

Natural behavior

Diurnal and arboreal lifestyle. Showing squirrel like patterns of locomotion and can leap up to 5m. Territorial occupying home ranges, using scent marks to define territory. Rising shortly after sunrise and retiring late afternoon, to nesting sites in close proximity to feeding source. Special elongated incisors allow them to bore into trees and feed on its sap. Once a tree no longer produces satisfactory output the troop will relocate to a new primary feeding source


Small, speckled tawny fur, claw like nails, long tail which is longer than their body and marked with dark rings


The Amazon, South America; Bolivia, Brazil, Colombia, Ecuador and Peru


Omnivore; peak feeds occur early morning and again in the late afternoon. Eating large amounts of tree gum, flowers, nectar, fruit, grubs, insects and spiders


No strict breeding season. Only the dominant pair will produce offspring. An extremely cooperative system of infant care exists where offspring are carried, groomed and fed by the father and older offspring. Females will enter a postpartum estrus after around 3 weeks of birth, which can result in another pregnancy

Social structure

Forms small family troops of 2-10, usually consisting of a monogamous breeding pair and their immature offspring. Juveniles will usually remain within the group for at least 2 subsequent birth cycles and assist with raising young infants.


Habitat loss from logging for the timber industry and clearing for agriculture. Illegal pet trade