Brown-throated Sloth

Q: What are the chances of seeing a Brown-throated Sloth in Cuyabeno Wildlife Reserve?

Likely. About 50% of wildlife watchers report a Brown-throated Sloth sighting in Cuyabeno Wildlife Reserve on a given day, based on 57 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 19 mammals we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.

Q: When is the best time to see a Brown-throated Sloth in Cuyabeno Wildlife Reserve?

November. In that month about 80% of wildlife watchers report a Brown-throated Sloth in Cuyabeno Wildlife Reserve on a given day, against under 5% in September, the lowest month.

Q: What time of day is best to see a Brown-throated Sloth?

Between 9 am and noon. Across all the parks we cover, that three-hour window holds the most Brown-throated Sloth sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Q: Is Cuyabeno Wildlife Reserve the best place to see a Brown-throated Sloth?

7th of 27. Of the 27 parks where we can rate Brown-throated Sloth sightings, Cuyabeno Wildlife Reserve ranks 7th at about 50%. The best odds are in Manuel Antonio National Park (Costa Rica, about 80%), Bastimentos Island National Marine Park (Panama, about 70%) and Tenorio Volcano National Park (Costa Rica, about 70%). All parks ranked.

Q: Where does the Brown-throated Sloth sighting chance come from?

GBIF citizen-science records. It is estimated from how often the Brown-throated Sloth is recorded against all the mammals logged in Cuyabeno Wildlife Reserve (57 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

Bradypus variegatus

Silhouette: Sarah Werning · PhyloPic

LCLeast ConcernNTVUENCR

KingdomAnimalia (Animals)
PhylumChordata (Chordates)
ClassMammalia (Mammals)
OrderPilosa (Sloths and Anteaters)
FamilyBradypodidae (Three-toed Sloths)
GenusBradypus (Three-toed Sloths)
SpeciesBradypus variegatus (Brown-throated Sloth)

Daily sighting probability ~50% · Likely

at Cuyabeno Wildlife Reserve

In 3 days ~90% in a week >90%

57 Verified sightings at Cuyabeno Wildlife Reserve From 2019 to 2026

3,603 In all 27 parks

November Best month

☀️ Diurnal When it's spotted

Challenge Two-toed and Three-toed Sloths Central AmericaEasy

Challenge Wild Neighbours of South American Cities South AmericaMedium

About the Brown-throated Sloth

The brown-throated sloth (Bradypus variegatus) is a species of three-toed sloth found in the Neotropical realm of Central and South America. It is the most common of the five species of three-toed sloth, and is found in the forests of South and Central America in countries such as Bolivia, Brazil, Colombia, Ecuador, Honduras, Nicaragua, Panama, Paraguay, Peru, and Venezuela. Although they once lived in Argentina, they are now believed to be extinct there.

The brown-throated sloth is of similar size and build to most other species of three-toed sloths, with both males and females being 42 to 80 cm (17 to 31 in) in total body length. The tail is relatively short, only 2.5 to 9 cm (1.0 to 3.5 in) long. Adults weigh from 2.25 to 6.3 kg (5.0 to 13.9 lb), with no significant size difference between males and females. Each foot has three fingers, ending in long, curved claws, which are 7 to 8 cm (2.8 to 3.1 in) long on the fore feet, and 5 to 5.5 cm (2.0 to 2.2 in) on the hind feet.

They have long forelimbs with three claws on each and about 10 cervical vertebrae, allowing their necks to rotate up to 270 degrees. Their cylindrical teeth lack enamel. Like many herbivorous... Wikipedia →

Sounds

Recording0:24

Ecuador · 2025

Recording0:51

Panama · 2020

Recording0:23

Brazil · 2025

Global Distribution

Where it is recorded most Known range (Mammal Diversity Database, Marsh et al. 2022)Our parks where it lives Our cities where it livesIn captivity: 10 zoos & centres

Parks Where Found

#	Park	Country	Daily sighting probability
1	Manuel Antonio National Park	🇨🇷 Costa Rica	~80%
2	Bastimentos Island National Marine Park	🇵🇦 Panama	~70%
3	Tenorio Volcano National Park	🇨🇷 Costa Rica	~70%
4	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	~60%
5	Arenal Volcano National Park	🇨🇷 Costa Rica	~50%
6	Tortuguero National Park	🇨🇷 Costa Rica	~50%
7	Cuyabeno Wildlife Reserve	🇪🇨 Ecuador	~50%
8	Chagres National Park	🇵🇦 Panama	~50%
9	Soberanía National Park	🇵🇦 Panama	~50%
10	Corcovado National Park	🇨🇷 Costa Rica	~40%
11	Braulio Carrillo National Park	🇨🇷 Costa Rica	~40%
12	San Lorenzo Protected Forest	🇵🇦 Panama	~40%
13	Cahuita National Park	🇨🇷 Costa Rica	~40%
14	Parque Natural Metropolitano	🇵🇦 Panama	~40%
15	La Amistad International Park (Panama)	🇵🇦 Panama	~40%
16	Serra dos Órgãos National Park	🇧🇷 Brazil	~40%
17	Anavilhanas National Park	🇧🇷 Brazil	~40%
18	Tayrona National Natural Park	🇨🇴 Colombia	~30%
19	Amacayacu National Natural Park	🇨🇴 Colombia	~30%
20	Yasuní National Park	🇪🇨 Ecuador	~20%
21	Tambopata National Reserve	🇵🇪 Peru	~20%
22	Tijuca National Park	🇧🇷 Brazil	~20%
23	Marino Ballena National Park	🇨🇷 Costa Rica	~20%
24	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	~10%
25	Manu National Park	🇵🇪 Peru	~10%
26	Carara National Park	🇨🇷 Costa Rica	~10%
27	Monteverde Cloud Forest Reserve	🇨🇷 Costa Rica	~10%

Cities Where Found

#	City	Country	Daily sighting probability
1	João Pessoa	🇧🇷 Brazil	~80%
2	Belém	🇧🇷 Brazil	~40%
3	Santa Cruz de la Sierra	🇧🇴 Bolivia	~40%
4	Maceió	🇧🇷 Brazil	~40%
5	Recife	🇧🇷 Brazil	~30%
6	São Luís	🇧🇷 Brazil	~30%
7	Caracas	🇻🇪 Venezuela	~20%
8	San José	🇨🇷 Costa Rica	~20%
9	Panama City	🇵🇦 Panama	~20%
10	Manaus	🇧🇷 Brazil	~20%

Zoos & Centres Where Found

#	Zoo / Centre	Country
1	Parque Municipal Summit	🇵🇦 Panama	In captivity
2	Vogelpark Marlow	🇩🇪 Germany	In captivity
3	Bosque Rodrigues Alves	🇧🇷 Brazil	In captivity
4	Alaska Zoo	🇺🇸 United States	In captivity
5	Zoológico de Fauna Sudamericana	🇧🇴 Bolivia	In captivity
6	El Nispero Zoo	🇵🇦 Panama	In captivity
7	Dallas World Aquarium	🇺🇸 United States	In captivity
8	The Green Planet	🇦🇪 United Arab Emirates	In captivity
9	Amazon Rescue Center	🇵🇪 Peru	In captivity
10	International Animal Rescue – Costa Rica	🇨🇷 Costa Rica	In captivity

Closest Relatives at Cuyabeno Wildlife Reserve

Choloepus didactylus

Daily sighting probability ~40% · Likely

Saimiri macrodon

Daily sighting probability ~70% · Very likely

Pithecia milleri

Daily sighting probability ~70% · Very likely

Inia geoffrensis

Daily sighting probability ~50% · Likely

Rhynchonycteris naso

Daily sighting probability ~50% · Likely

Lagothrix lagothricha

Daily sighting probability ~50% · Likely

Alouatta seniculus

Daily sighting probability ~50% · Likely

Cebus yuracus

Daily sighting probability ~40% · Likely

Leontocebus nigricollis

Daily sighting probability ~40% · Likely

Cheracebus lucifer

Daily sighting probability ~40% · Likely

Pteronura brasiliensis

Daily sighting probability ~30% · Possible

Plecturocebus discolor

Daily sighting probability ~30% · Possible

See all 12 relatives Show fewer

Before you go

What are the chances of seeing a Brown-throated Sloth in Cuyabeno Wildlife Reserve?

Likely

About 50% of wildlife watchers report a Brown-throated Sloth sighting in Cuyabeno Wildlife Reserve on a given day, based on 57 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 19 mammals we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.

When is the best time to see a Brown-throated Sloth in Cuyabeno Wildlife Reserve?

November

In that month about 80% of wildlife watchers report a Brown-throated Sloth in Cuyabeno Wildlife Reserve on a given day, against under 5% in September, the lowest month.

What time of day is best to see a Brown-throated Sloth?

Between 9 am and noon

Across all the parks we cover, that three-hour window holds the most Brown-throated Sloth sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Cuyabeno Wildlife Reserve the best place to see a Brown-throated Sloth?

7th of 27

Of the 27 parks where we can rate Brown-throated Sloth sightings, Cuyabeno Wildlife Reserve ranks 7th at about 50%. The best odds are in Manuel Antonio National Park (Costa Rica, about 80%), Bastimentos Island National Marine Park (Panama, about 70%) and Tenorio Volcano National Park (Costa Rica, about 70%). All parks ranked.

Where does the Brown-throated Sloth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Brown-throated Sloth is recorded against all the mammals logged in Cuyabeno Wildlife Reserve (57 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

← Back to Cuyabeno Wildlife Reserve

Brown-throated Sloth

About the Brown-throated Sloth

Sounds

Recent sightings of Brown-throated Sloth in Cuyabeno Wildlife Reserve

Global Distribution

Parks Where Found

Cities Where Found

Zoos & Centres Where Found

Closest Relatives at Cuyabeno Wildlife Reserve

Linnaeus's Two-toed Sloth

Ecuadorian Squirrel Monkey

Miller's Saki

Boto

Proboscis Bat

Common Woolly Monkey

Colombian Red Howler Monkey

Marañón white-fronted capuchin

Black-mantled Tamarin

Lucifer Titi

Giant Otter

White-tailed Titi

Before you go

What are the chances of seeing a Brown-throated Sloth in Cuyabeno Wildlife Reserve?

When is the best time to see a Brown-throated Sloth in Cuyabeno Wildlife Reserve?

What time of day is best to see a Brown-throated Sloth?

Is Cuyabeno Wildlife Reserve the best place to see a Brown-throated Sloth?

Where does the Brown-throated Sloth sighting chance come from?