The Lost World is a novel published in 1912 by Arthur Conan Doyle about an expedition to a plateau in South America where prehistoric animals (dinosaurs and other extinct creatures) still survive. The novel introduces the character of Professor Challenger. Although it is a seminal work of dinosaur-related fiction, the animals occupy only a small portion of the narrative; much more time is devoted to a war between early human hominids and a vicious tribe of ape-like creatures.