The team come face-to-nose with a three toed sloth on a late-night trip downriver. Subscribe: bit.ly/BBCEarthSub #ThreeToedSloth #NighttimeNatureDoc #BBCEarth Watch more: Planet Earth bit.ly/PlanetEarthPlaylist Blue Planet bit.ly/BluePlanetPlaylist Planet Earth II bit.ly/PlanetEarthIIPlaylist Planet Dinosaur 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...