Take a peek at the world's slowest mammal, so sedentary that algae grows on its furry coat. Read on to learn about life in the slow lane.

Three-toed sloths have a symbiotic relationship with moths and algae. Sloths are the quintessential couch potatoes of the rainforest, and these sluggish tree-dwellers also serve as a hotel for ...

French photographer Emmanuel Tardy's image of a sloth clinging to a post in Costa Rica is one of the images from the 2025 ...

A striking photograph reveals the consequences of human activity on wildlife: this sloth desperately seeks refuge after ...

The sloth was caught on camera by a GoPro propped in a tree in Nicaragua. — -- A sloth spotted in the wilds of Nicaragua by an American tourist was just trying to take a nap, but first, it ...

New research on the evolutionary relationships between tree sloths and their extinct giant relatives is challenging decades of widely accepted scientific research.

Scientists have solved the evolutionary puzzle of how sloths went from enormous ground-dwelling giants to the small, famously-laidback tree-climbers of the modern day. The study, by an ...

Where Sloths Find These Branches, Their Family Trees Expand A study showed that when some animals find a crucial resource, they can survive in changing environments and even thrive. Share full ...

Sloths are the quintessential couch potatoes of the rainforest, and these sluggish tree-dwellers also serve as a hotel for moths and algae. Three-toed sloths descend from the trees once a week to ...