Fauna
Mammal

Pale-throated Sloth

Bradypus tridactylus

Also known as Ai, Pale-throated Three-toed Sloth

Pale-throated sloths spend almost their entire lives suspended upside down in the dense rainforest canopies of northern South America. A specialized diet of tough, fibrous leaves supports an exceptionally slow metabolic rate, requiring hours of daily basking in high branches to aid digestion. Once a week, individuals descend to the forest floor to defecate, exposing themselves to ground predators in a rare moment of vulnerability.

ArborealFolivoreSlow-moving
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyLeaves, particularly from Cecropia trees
Predators
  • Harpy Eagle
  • Jaguar
  • Ocelot
ThreatsDeforestation and habitat fragmentation
HabitatsTropical rainforest canopy
Life span15–30 years
  1. FamilyBradypodidae
  2. SpeciesBradypus tridactylus
Native
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance without disturbing tree climbing.
Responsible observation
  • Binocular Scanning: Look high in Cecropia trees for rounded, mossy clusters among leaves.
  • Canopy Respect: Avoid surrounding isolated trees so sloths can freely cross between branches.
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