The team come face-to-nose with a three toed sloth on a late-night trip downriver. Subscribe: http://bit.ly/BBCEarthSub #ThreeToedSloth #NighttimeNatureDoc #BBCEarth Watch more: Planet Earth http://bit.ly/PlanetEarthPlaylist Blue Planet http://bit.ly/BluePlanetPlaylist Planet Earth II http://bit.ly/PlanetEarthIIPlaylist Planet Dinosaur http://bit.ly/PlanetDinoPlaylist The Dark: Nature’s Nighttime World For humans, darkness is menacing, forbidding, petrifying. It conceals the most dangerous and terrifying creatures on Earth, but it also holds some of the greatest, undiscovered mysteries of nature. Most animals are nocturnal, but they're seldom studied at night and rarely filmed in the dark. The Dark follows a team of wildlife experts on a mission to solve those wildlife mysteries. Braving the jungles and swamps of South America during the night, the team sheds light on previously unobserved creatures and strange behaviours, offering a new perspective on our wild planet. Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this. Want to share your views with the team? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register This is a commercial page from BBC Studios. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx