BBC Earth：Sir David Attenborough on the Planet Earth series | PlanetEarth III |

20 years. 7 continents. 3 series. 1 planet. Over the past two decades, Sir David Attenborough has travelled to the furthest corners of our planet. He reflects upon the incredible animals and habitats he has seen, and what the future could hold – for both us and them. Our home. Our future. This is #PlanetEarth3