The Dinosaur Heresies
 The Dinosaur Heresies: New Theories Unlocking the Mystery of the Dinosaurs and Their Extinction was a 1986 book published by Robert T. Bakker a prominent paleontologist.The book sums up the extant evidence which indicates that dinosaurs rather than being cold-blooded and wholly lizard-like were in fact warm-blooded agile creatures more similar to modern birds than to lizards or other reptiles.