It is hard to guess what a Black-capped squirrel monkey weights. But we have the answer:
An adult Black-capped squirrel monkey (Saimiri boliviensis) on average weights 802 grams (1.77 lbs).
The Black-capped squirrel monkey is from the family Cebidae (genus: Saimiri). When reaching adult age, they grow up to 30.9 cm (1′ 1″). Usually, Black-capped squirrel monkeys have 1 babies per litter.
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.
The Black-capped squirrel monkey (Saimiri boliviensis) is a species of New-World monkey native to the upper Amazon basin in Bolivia, western Brazil and eastern Peru. They weigh between 365 and 1135 grams and measure, from the head to the base of the tail, between 225 and 370mm. Black-capped squirrel monkeys are primarily tree-dwelling and are found in both native and plantation forests as well as some farmed areas near running water. Their diet is omnivorous and mostly contains flowers, fruit, leaves, nuts, seeds, insects, arachnids, eggs and small vertebrates.They mostly live in female-dominated troops of around 40 to 75 monkeys, with males having been observed to disperse to live in all-male troops after reaching sexual maturation. Their current conservation status according to the IUCN is ‘Least Concern’. The species belongs to the genus Saimiri and has two subspecies, S. b. boliviensis (the Bolivian squirrel monkey) and S. b. peruviensis (the Peruvian squirrel monkey).
Animals of the same family as a Black-capped squirrel monkey
We found other animals of the Cebidae family:
- Three-striped night monkey with a weight of 912 grams
- Brown howler bringing 5.19 kilos (11.44 lbs) to the scale
- Aotus infulatus with a weight of 800 grams
- Hoffmanns’s titi bringing 1.07 kilos (2.36 lbs) to the scale
- Bare-eared squirrel monkey with a weight of 888 grams
- Mantled howler bringing 6.58 kilos (14.51 lbs) to the scale
- Colombian white-faced capuchin bringing 3.01 kilos (6.64 lbs) to the scale
- Spix’s night monkey with a weight of 873 grams
- White-cheeked spider monkey bringing 6.24 kilos (13.76 lbs) to the scale
- Black-headed marmoset with a weight of 401 grams
Animals with the same weight as a Black-capped squirrel monkey
As a comparison, here are some other animals that weight as much as the Saimiri boliviensis:
- Eastern white-eared giant rat bringing 867 grams to the scale
- Rock squirrel bringing 715 grams to the scale
- Mexican prairie dog bringing 900 grams to the scale
- Northern sportive lemur bringing 760 grams to the scale
- Spix’s night monkey bringing 873 grams to the scale
- American marten bringing 878 grams to the scale
- Black-tailed prairie dog bringing 797 grams to the scale
- Tailless tenrec bringing 894 grams to the scale
- Moonrat bringing 787 grams to the scale
- Western white-eared giant rat bringing 932 grams to the scale
Animals with the same size as a Black-capped squirrel monkey
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Black-capped squirrel monkey:
- Eastern lesser bamboo lemur with a size of 33.5 cm (1′ 2″)
- Striped polecat with a size of 33.5 cm (1′ 2″)
- Guianan squirrel monkey with a size of 32.2 cm (1′ 1″)
- Great flying fox with a size of 27.9 cm (0′ 11″)
- Northern viscacha with a size of 34.2 cm (1′ 2″)
- Broad-striped Malagasy mongoose with a size of 31.9 cm (1′ 1″)
- Pousargues’s mongoose with a size of 29 cm (1′ 0″)
- Golden lion tamarin with a size of 26.1 cm (0′ 11″)
- Western quoll with a size of 34.9 cm (1′ 2″)
- Giant Atlantic tree-rat with a size of 28.1 cm (1′ 0″)
Animals with the same litter size as a Black-capped squirrel monkey
Here is a list of animals that have the same number of babies per litter (1) as a Black-capped squirrel monkey: