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  3. Mantled Howler Monkey

One of the 18 monkeys on WAnimals

Mantled Howler Monkey (Alouatta palliata)

Mammals · Primates · Atelidae

Mantled Howler Monkey

Alouatta palliata

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

Its greatly enlarged hyoid bone works as a resonating chamber that amplifies its characteristic howls, audible over 5 kilometres away — among the loudest sounds any land mammal makes.

Weight

4 kg – 10 kg

Size

38 cm – 58 cm

Life expectancy

16 years

Diet

Herbivore

Feeds mainly on plants.

Activity

Diurnal

Active mainly during the day.

Social structure

Herd

Lives in large groups as a strategy against predators.

Rainforest
10countries28parks8same family1featured routes

AI-generated images: illustrations, not photographs.

Fun facts

  • It feeds mainly on leaves, an adaptation uncommon among American primates, supplemented with fruit and flowers.
  • It lives in the humid and secondary tropical forest of Central America and north-western South America.
  • Its prehensile tail lets it hold on to branches while it feeds or rests.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Humid and secondary tropical forest of Central America and north-western South America
Birth weight
~409 grams
Size at birth
Completely dependent, clinging to its mother's fur from birth
Sexual maturity
Female: 36 months (3 years) | Male: 42 months (3.5 years)
Gestation / incubation
~186 days (6 months)
Litter / clutch size
1 young, with an interval between births of ~22.5 months
Life expectancy in captivity
Documented record of up to 24 years in captivity

Sources consulted: AnAge (genomics.senescence.info) · PubMed (reproduction population growth study) · Animal Diversity Web · BioExplorer · Animalia.bio · Instituto Asis · MSU Brain Museum · IUCN Red List

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented — showing 10 of 28.

Related species

Other species in the catalogue with the most in common with Mantled Howler Monkey — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Shares a park
Shares a park
Shares a park

Keep exploring

Based on what we already know about mantled howler monkey.

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See full glossary
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See its range on the interactive map→
Sumidero CanyonMexico
CorcovadoCosta Rica
TortugueroCosta Rica
Manuel AntonioCosta Rica
MonteverdeCosta Rica
Arenal VolcanoCosta Rica
La AmistadCosta Rica
DarienPanama
Río PlátanoHonduras
Pico BonitoHonduras
See all 28 parks
Central American Spider MonkeyEndangered

Central American Spider Monkey

Ateles geoffroyi

Black and Gold Howler MonkeyLeast Concern

Black and Gold Howler Monkey

Alouatta caraya

Colombian Red Howler MonkeyLeast Concern

Colombian Red Howler Monkey

Alouatta seniculus

Colombian White-throated CapuchinLeast Concern

Colombian White-throated Capuchin

Cebus capucinus

Least Concern

Central American Agouti

Dasyprocta punctata

Red-bellied SquirrelLeast Concern

Red-bellied Squirrel

Sciurus aureogaster

CountriesCosta Rica
ParksSumidero CanyonMexico
TagsHerbivore
Herbivore
Diurnal
In herds
Rainforest
Mammal

North America8

South America2

Costa Rica
Honduras
Nicaragua
Panama
Ecuador
Colombia
Belize
Costa Rica
El Salvador
Guatemala
Honduras
Mexico
Nicaragua
Panama
Colombia
Ecuador