Bolortsetseg Minjin grew up on top of dinosaur bones. That’s not unusual in Mongolia. What was unusual in Mongolia. What was unusual about her childhood is that she saw them and learned the difference between a tarbosaur and a protoceratops early. Her father, a prominent paleontologist trained in Russia, worked in the Gobi desert, looking for the sorts of fossils that made diggers like the American Museum of Natural History’s Roy Chapman Andrews famous in the 1920s.