The Dr. Is In: Who Would Win in a Duel - T. rex or Stegosaurus - and Other Questions From Our Readers
Cat-loving paleontologist answers your questions in the National Museum of Natural History's YouTube series, "The Doctor Is In."
The Dr. Is In: Is Dimetrodon a Dinosaur and Other Questions from Our Readers
Cat-loving paleontologist answers your questions in the National Museum of Natural History's YouTube series, "The Doctor Is In."
The Dr. Is In: What Is the Smallest Known Dinosaur and Other Questions from Our Readers
Cat-loving paleontologist answers your questions in the National Museum of Natural History's YouTube series, "The Doctor Is In."