The New Dinosaurs: An Alternative Evolution (1988) is a speculative evolution and speculative fiction book written by geologist and paleontologist Dougal Dixon. While Dixon's earlier book After Man is set fifty million years in the future, The New Dinosaurs speculates on how the dinosaurs and other animals could have evolved over the last 65 million years had the Cretaceous–Paleogene extinction event not taken place. It is also the second in his series of speculative evolution books, which have inspired the speculative zoology artistic movement.