Linnaeus’s two-toed sloth

The digestion process of tough leaves is very slow; it might even take up to 1 month to digest one meal

Hartmut Inerle

The digestion process of tough leaves is very slow; it might even take up to 1 month to digest one meal

Population

This characteristic slowness is not just an interesting fact but a vital survival strategy. On the ground, these sloths move at a leisurely pace of only 2 meters (6.5 feet) per minute, while in their more natural arboreal environment, they can slightly hasten their pace to 3 meters (10 feet) per minute. This slow movement conserves energy, making them less noticeable to predators such as eagles, jaguars, and snakes.

The fur of Linnaeus’s two-toed sloth is a complex ecosystem in itself. Its coat, which varies in color from beige to grey-brown, often appears to have a greenish tint. This unique coloring is the result of mutualistic algae that thrive in the grooves of the sloth’s fur. This symbiotic relationship benefits the sloth by providing camouflage within the green canopy of the rainforest while the algae receive a place to live and grow. The sloth’s fur is structured in two layers: a soft, fine undercoat that helps regulate their body temperature and a longer, coarser outer coat that protects them from the elements and houses the algae.

The dietary habits of Linnaeus’s two-toed sloth contribute to their slow-paced lifestyle. They feed on leaves, which are not only difficult to digest but also provide very little energy. The sloth’s slow metabolism and specialized stomach are adapted to ferment and break down these tough leaves, a process that can take up to a month to complete for a single meal. This inefficient energy conversion is what necessitates their slow movement and energy-conserving lifestyle.

Rarely descending from the safety of the trees, Linnaeus’s two-toed sloths come to the ground about once a week solely for the purpose of defecation. This behavior is one of the sloth’s most vulnerable moments, exposing them to potential predators. Interestingly, they also seldom drink, obtaining the majority of their water intake from the moisture found in the leaves and fruits they consume.

Distribution

Country
Population est.
Status
Year
Comments
Bolivia
2022
Brazil
2022
Colombia
2022
Ecuador
2022
French Guiana
2022
Guyana
2022
Peru
2022
Suriname
2022
Venezuela
2022

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Terrestrial / Aquatic

Altricial / Precocial

Polygamous / Monogamous

Dimorphic (size) / Monomorphic

Active: Diurnal / Nocturnal

Social behavior: Solitary / Pack / Herd

Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore

Migratory: Yes / No

Domesticated: Yes / No

Dangerous: Yes / No