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As the slowest mammal in the world — with a side of bad hearing and vision — the sloth's survival story is an unusual one. The animal is now facing the threat of climate change and human sprawl.
Sloths, the world's slowest mammal, have been around for 64 million years. Sharyn Alfonsi traveled to Costa Rica to learn more about how they've survived.
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These petite and impossibly slow sloths have found that the ocean offers a safe and speedy way to get around.
HowStuffWorks finds out why sloths expose themselves to so much danger by leaving their tree homes to poop on the ground.
But they are slow for a very important reason and are perfectly adapted to their environment. Those adaptations make them far from boring and actually quite extreme. Their fur has its own ecosystem and scientists believe it may even be able to cure cancer. They even risk their lives to poop and make it count, pooping over 30% of their body weight. 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 most extreme animals on the planet, and not j...