Paleontologists in New Mexico say fossils of the newly discovered 10-foot-tall Tawa hallae shed new light on dinosaur origins. The 213-million-year-old remains—old even for a dinosaur—were found alongside fossils of other early meat eaters. But the closest relatives of those species lived in South America, where the first dinosaurs may have evolved. The find suggests several waves of dinosaurs colonized North America when the two continents were in greater contact as part of the landmass called Pangea.
For more on Tawa hallae check out our "Dinosaur Tracking" blog.
Have you ever wondered how a simple shot can keep you from dying a horrible death? In this one-minute video, Ask Smithsonian’s host, Eric Schulze, unravels how vaccines boot-camp our bodies into shape, getting us ready to fight off deadly diseases
Future Crimes: Everything Is Connected, Everyone Is Vulnerable and What We Can Do About It [Marc Goodman] on Amazon.com. *FREE* shipping on qualifying offers. NEW YORK TIMES and WALL STREET JOURNAL BESTSELLER One of the world's leading authorities on global security
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