BRAZILIAN NIGHT MONKEY
Aotus nancymaae
DESCRIPTION
The Brazilian Night Monkey, also known as Aotus nancymaae, is a small primate characterized by its large eyes and a distinctive facial mask. It has a soft, dense fur that is typically a mix of gray and brown, allowing it to blend into its forested environment. This nocturnal species is known for its social behavior, often found in small family groups, and exhibits a range of vocalizations to communicate with one another.
FUN FACTS
- Brazilian Night Monkeys are unique among primates for their monogamous pair bonding, often forming strong family units that work together to raise their young
- They are also known for their impressive vocalizations, which include a variety of calls used for communication, especially during the night when they are most active.| These monkeys have excellent night vision, which allows them to navigate their forest habitat in low light conditions
- Their large eyes are adapted to detect movement and find food, making them effective foragers in the dark
QUICK INFO
Lifespan15-20 years in the wild, up to 25 in captivity
Average Weight1.0-1.5 kg
Average Length40-50 cm
Diet TypeOmnivore
Social StructureThey typically live in small family groups consisting of a mated pair and their offspring.
Activity PatternNocturnal
Breeding SeasonYear-round, with peaks depending on local conditions
- Habitat
- This species inhabits tropical and subtropical forests, often favoring areas with dense canopy cover. They are arboreal, spending most of their time in trees, which provides them with food and protection from predators.
- Biomes
- Tropical Rainforest
- Native Range
- The Brazilian Night Monkey is native to the Amazon Basin, specifically found in Brazil and parts of neighboring countries.
- Continent
- South America
- Countries
- Brazil, Bolivia, Peru
- Diet
- The Brazilian Night Monkey primarily feeds on fruits, insects, and small vertebrates. Its diet is diverse, allowing it to adapt to varying food availability in its habitat.
- Diet Type
- Omnivore
- Favorite Food
- Fruits and insects
- Social Structure
- They typically live in small family groups consisting of a mated pair and their offspring.
- Activity Pattern
- Nocturnal
- Group Size
- 2-6
- Territorial
- 1
VU
LC
1.0-1.5 kg
Weight
40-50 cm
Length
- Coloration
- Grayish-brown fur with lighter underparts and a distinctive facial mask.
- Lifespan
- 15-20 years in the wild, up to 25 in captivity
- Gestation Period
- 120 days
- Offspring per Birth
- 1-2
- Sexual Maturity
- 2-3 years
- Breeding Season
- Year-round, with peaks depending on local conditions
VU
Vulnerable
IUCN Red List Status
- Population Status
- The population status is currently not well-documented, but habitat loss poses a significant threat.
- Wild Population Estimate
- Unknown
- Population Trend
- Decreasing
- Endangered
- 1
- Threats
- Main threats include habitat destruction due to deforestation and fragmentation of their forest habitat. Additionally, hunting and the illegal pet trade pose risks to their populations.
- Predators
- Large birds of prey, snakes, and larger mammals such as jaguars may prey on Brazilian Night Monkeys.
- Defense Mechanisms
- They rely on their nocturnal habits and arboreal lifestyle to avoid predators, using the dense foliage for cover.
- Found in Zoos
- Uncommon