Dino Destruction
NPR's David Kestenbaum reports on a theory published in the journal Science that says an asteroid that slammed into Earth 200 million years ago may have contributed to the evolution of dinosaurs on the planet.
Comments
 
You must be signed in to leave a comment. Sign In / Register
Please keep your community civil. All comments must follow the NPR.org Community rules and terms of use, and will be moderated prior to posting. NPR reserves the right to use the comments we receive, in whole or in part, and to use the commenter's name and location, in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.