Common Marmoset

Callithrix jacchus

Class: Mammalia Order: Primates Family: Cebidae


Weight: 0.5-1 lb


Fruit, leaves, flowers, seeds, nectar, eggs, insects, and small vertebrates


Lifespan (Wild): 10 years
Lifespan (Captivity): 14 years

Habitat & Range

Habitat: Edges of forests in Brazil

Interesting Facts

  • Common marmosets are very small monkeys found in northern Brazil. Their name comes from the French word “marmouset” which translates to “dwarf”.
  • They are arboreal and spend most of their time in the trees. Marmosets have claw-like nails that allow them to cling to trees and climb like squirrels. They can climb vertically as well as run and leap across branches.
  • Marmosets have chisel-shaped incisors to gnaw holes in the bark of trees to get lick and scoop out the sap. Saps and gums make up much of their diet when fruit is scarce.
  • Marmosets communicate vocally and visually through facial expressions. For example, they have an alarm call to alert the rest of the troop when potential danger is nearby. Due to their diminutive size, they are vulnerable to many predators.

Conservation Status

Least Concern


Common marmosets are widespread, however they are threatened by loss of habitat.