Science, Tech, Math › Animals & Nature Jack Horner Share Flipboard Email Print Getty Images / Mike Capolla Animals & Nature Dinosaurs Paleontologists Basics Carnivores Dinosaurs & Birds Herbivores Marine Reptiles Prehistoric Mammals Amphibians Birds Habitat Profiles Mammals Reptiles Wildlife Conservation Insects Marine Life Forestry Evolution View More By Bob Strauss Science Writer B.S., Cornell University Bob Strauss is a science writer and the author of several books, including "The Big Book of What, How and Why" and "A Field Guide to the Dinosaurs of North America." our editorial process Bob Strauss Updated November 19, 2019 Name: Jack HornerBorn: 1946Nationality: AmericanDinosaurs Named: Maiasaura, Orodromeus About Jack Horner Along with Robert Bakker, Jack Horner is one of the most prominent paleontologists in the United States (the two men served as advisers for the Jurassic Park movies, and Sam Neill's character in the original was inspired by Horner). Horner's main claim to fame was his discovery, in the 1970s, of the extensive nesting grounds of a North American hadrosaur, which he named Maiasaura ("good mother lizard"). These fossilized eggs and burrows gave paleontologists an unusually detailed glimpse of the family life of duck-billed dinosaurs. The author of numerous popular books, Horner has remained at the forefront of paleontological research. In 2005, he discovered a chunk of T. Rex with soft tissue still attached, which was recently analyzed to determine its protein content. And in 2006, he led a team that discovered dozens of nearly intact Psittacosaurus skeletons in the Gobi Desert, shedding some valuable light on the lifestyles of these small, beaked herbivores. Lately, Horner and colleagues have been examining the growth stages of various dinosaurs; one of their more stunning finds is that Triceratops and Torosaurus may well have been the same dinosaur. By the turn of the 21st century, Horner had obtained a reputation as being a bit of an eccentric, always eager (and perhaps a tad over-eager) to overthrow accepted dinosaur theories and hog the limelight. He's not afraid to challenge his critics head-on, however, and lately has caused even more of a stir with his "plan" to clone a dinosaur by manipulating the DNA of a living chicken.