"Now how do I tell my parents that I want a baby sloth…" someone else teased. "Baby sloth thinking: WHY ARE WE MOVING AT ...

Suzi Eszterhas (USA) captures an encounter between a sloth and a dog. The brown-throated sloth had already made it across a road, but to reach the next clump of trees it needed to return to the ground ...

Some animals appear to smile. But the emotion behind the smile can be tricky to decipher.

To mark the BBC Radio 4 documentary The Power of Sloth, zoologist and author of Life in the Sloth Lane, Lucy Cooke, unleashes her inner sloth to discover why being lazy could actually be the ...

The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South ...

Sloths are known for how slowly they move, but their slow speed isn't just a funny quality they have— it's part of why their species has survived for 64 million years. Following is the text of ...

Following is a transcript of the video. Narrator: If there's one thing you know about sloths, it's that they're, well, slow. But that doesn't mean they're boring. In fact, sloths are one of the ...