Sloths, the world's slowest mammals, have evolved over 64 million years into a species that thrives throughout Central America and northern South America, but climate change and human sprawl could be ...

While humans wouldn’t be very happy to find that organisms were growing on their skin, particularly fungi, algae, and insects, it works out pretty well for sloths. Sloths may be hosting entire ...

Defecating exposes sloths to predators on the jungle floor. An unexpected ally benefits, and returns the favor. A brown-throated three-toed sloth peers over a tree's buttress root while defecating on ...

World Sloth Day 2025 celebrates one of nature’s most intriguing and misunderstood creatures. Known for their incredibly slow pace, sloths embody a lifestyle that’s calm, patient, and perfectly adapted ...

Heather Ewart does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

For more than a decade, animal rescue centers in Central America have reported receiving a strangely high number of baby sloths with genetic mutations. Dr. Rebecca Cliffe was working on her Ph.D. near ...