High up in the rainforests of Central and South America live sloths, the slowest mammal in the world. They are so slow that algae will grow on their hair, making them very hard to spot. But once you see one, you'll know right away why they're one of the Internet's most popular animals. _______________________ Join us on a trip around the world, visiting different countries to see some of nature's most fascinating animals. Each week we'll take you to a new and wild part of the world and teach you about one amazing animal. Who says traveling the globe has to be so hard? Join us every week on Discovery World Safari. New episodes every Monday Subscribe here: http://youtube.com/subscription_center?add_user=DiscoveryWorldSafari Watch more Discovery World Safari on Animalist at: http://animalist.com/DiscoveryWorldSafari Follow Discovery World Safari on Twitter http://twitter.com/DWorldSafari Like Discovery World Safari on Facebook: https://www.facebook.com/pages/Discovery-World-Safari/601881343182437 Add Discovery World Safari on Google+ https://plus.google.com/b/107981407304922758702/107981407304922758702