You may not know his name, but chances are that you have seen his work. Brooklyn-born artist Charles R. Knight (1874–1953) produced paintings and sculptures of dinosaurs, mammoths and prehistoric humans that adorn the great natural history museums in the U.S. His dinos have appeared as toys, stamps and comics, as well as in books and scientific journals on paleontology. One of Sir Arthur Conan Doyle’s illustrators swiped them for his 1912 novel The Lost World. Some even became movie stars, directly inspiring sequences in the 1933 King Kong and, more indirectly, Walt Disney’s 1940 Fantasia and Steven Spielberg’s 1993 Jurassic Park. Hollywood’s master monster animator Ray Harryhausen, creator of the dinosaurs in the 1966 One Million Years B.C. and other cult classics, based his stop-motion puppets on paintings and sculptures by Knight.