What are the 4 monkey species found in Costa Rica?

The Central American squirrel monkey (Saimiri oerstedii), white-faced capuchin (Cebus imitator), mantled howler monkey (Alouatta palliata), and Geoffroy's spider monkey (Ateles geoffroyi). Corcovado is the rare haven where all four coexist.

Which monkey is considered the most intelligent?

The white-faced capuchin. Possessing the largest brain-to-body ratio of any New World monkey, capuchins use stone anvils and hammers to crack nuts, and rub crushed medicinal millipedes onto fur as natural bug spray.

How far does a howler monkey's roar carry?

A howler's dawn roar can be heard across 3 miles (5 km) of dense jungle. An enlarged, hollow hyoid bone at the throat acts as an acoustic loudspeaker.

Why is a spider monkey's tail called a fifth hand?

Their muscular prehensile tail features a hairless friction pad at the tip with unique skin ridges identical to human fingerprints, easily supporting the monkey's entire hanging body weight.

The 4 Monkeys of Costa Rica in Corcovado & Sierpe: Sizes, Intelligence & Habits

Corcovado National Park and the Sierpe River mangroves form an extraordinary wildlife corridor: one of Earth's few contiguous tropical habitats where all four of Costa Rica's native primate species thrive together in thriving natural populations.

📋 Quick Species Profile: The 4 Monkeys of Costa Rica

1. Squirrel Monkey (Saimiri oerstedii): 11–14 in | 1.5–2.0 lbs | Endangered regional endemic

2. White-faced Capuchin (Cebus imitator): 14–18 in | 6.5–9.0 lbs | High cognitive tool-using primate

3. Mantled Howler (Alouatta palliata): 20–28 in | 13–22 lbs | Deep roars carrying 3 miles

4. Spider Monkey (Ateles geoffroyi): 16–24 in | 15–21 lbs | Master canopy acrobat with 'fifth-hand' tail

Diet: Omnivorous and frugivorous (figs, seeds, flowers, insects)

Sighting Probability: Very high along coastal Sirena trails and riverbanks

Species Breakdown

Central American Squirrel Monkey: Tiny and fast-moving, traveling in social bands of 20 to 50 members hunting katydids and berries in the understory.
White-faced Capuchin: Master opportunist seen along beaches and trails, famous for unlocking fruit pods with stone anvils.
Mantled Howler Monkey: Leaf-eating giant resting in high canopy trees, greeting dawn with earth-shaking resonant roars.
Geoffroy's Spider Monkey: Long-limbed canopy gymnast swinging effortlessly across dizzying heights using an agile prehensile tail.

You Could Spot Them on the Corcovado Sirena Day Tour ($140 USD)

* Monkey troops actively forage in the canopy along Sirena Station trails and Sierpe mangrove shores.