The Lost World

The Lost World is a novel by Arthur Conan Doyle concerning an expedition to a plateau in South America where prehistoric animals (dinosaurs and other extinct creatures) still survive. The character of Professor Challenger[?] was introduced in this book.

The novel has been adapted to film many times, the first time in 1925. This version was directed by Marion C. Cooper[?] and featured pioneering stop motion special effects by Willis O'Brien[?]; this version has been deemed "culturally significant" by the Library of Congress and selected for preservation in the United States National Film Registry.

The Lost World is also a 1995 novel by Michael Crichton.