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 ...

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To time how fast a sprinter runs, you just need a stopwatch. To time how fast magma moves, you need to know a little bit ...

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 ...

Sloth is a sin and busy-ness a badge of honour – but is our need for speed really the best strategy? Zoologist and broadcaster Lucy Cooke, holding a baby sloth I started my investigation with a ...

“A Sloth Story,” an Australian animated feature directed by Ricard Cussó and Tania Vincent, takes slothful speed and applies it not to gags, but to a sentimental story set in the culinary worl ...