This Earth Day, stay in and explore the beauty, drama and spectacle of our natural world with 50 incredible natural history moments from BBC Earth based on what you've been liking and sharing. This is the fourth of five videos. Subscribe: bit.ly/BBCEarthSub #NaturalHistory #StayInAndExplore Watch more: Planet Earth bit.ly/PlanetEarthPlaylist Blue Planet bit.ly/BluePlanetPlaylist Planet Earth II bit.ly/PlanetEarthIIPlaylist Planet Dinosaur bit.ly/PlanetDinoPlaylist Kangaroo Boxing Fight - Life Story Wolf Pack Hunts A Hare - The Hunt Attenborough: Saying Boo to a Sloth! - Life of Mammals Puppy opens its eyes for the first time - Puppy Senses | Secret Life of Dogs Mudskippers: The Fish That Walk on Land - Life | BBC Earth Sardine Feeding Frenzy: Whale, Shark, Dolphin and Sea Lions - The Hunt Leopards learn how to Catch Catfish - Natural World: Fishing Leopards Three Cheetahs Vs Ostrich - Life Caterpillars Feeding on Exploding Touch-Me-Not S...