Sloths are famous for moving slowly, but that extreme pace has unexpected biological consequences. Because they spend so much time nearly motionless, algae can grow directly in their fur, turning the ...

Sloths look slow in a way that almost doesn’t feel real, but their sluggish movement isn’t a flaw or a weakness. Every part of their body is built around saving energy, avoiding danger, and surviving ...

Fans of the movie franchise Zootopia know that sloths make the perfect DMV (Department of Mammal Vehicles) workers.

Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.

One of the most popular animals around is the sloth. They are so relaxed and laid back, and they always look like they're smiling. They're also very slow, which makes getting anywhere a long process.

CC0 Usage Conditions ApplyClick for more information. This video was created for the Get a Head Start with the Smithsonian (GHSS) program. This National Zoo-based project brings the entire Smithsonian ...