Growing up in New York City, film director and animator Peter Sohn remembers visiting the American Museum of Natural History as a kid and being awed by the dinosaurs on display there.
"There was a barosaurus in the atrium," Sohn tells Fresh Air's Terry Gross. "It was kind of standing on two legs, and it blew me away, that thing. ... It ignites the imagination to think that something that large could've roamed around New York."