Stewart is an award-winning author of over 35 natural history books and presenter of numerous wildlife TV documentaries. He leads dozens of expeditions across the world each year and has discovered 35 new species. Stewart has witnessed both the destruction of nature and the saving of species on the absolute brink of extinction. He co-founded Darwin200 and is leading this innovative, global adventure. Past projects include organising the donation of conservation resources and books to tens of thousands of schools, libraries and universities.