Who is the oldest primate, and is it our great-great-great grandfather? Listener Elena's question takes us into a laboratory chock full of fossils, and brings us back to the impact that killed most of the dinosaurs. Anthropologist Chris Kirk introduces us to our very ancient - and very tiny - ancestors. Visit our blog at tumblepodcast.com to see photos of Rooneyia and Mahgarita, as well as a tour of the Vertebrate Paleontology Lab! We have resources to get started with your own fossil hunt. If you've been inspired to fossil hunt, let us know what you found! Are you a teacher or homeschooling parent? Tell us how you use Tumble! Email us at firstname.lastname@example.org. We love hearing from you! Want an ad-free version of Tumble? It’s only $1 each month. Pledge on Patreon to get access to this special podcast feed, including Marshall’s original music. Let us know how you use Tumble. Send us your questions and drawings! Don’t forget to subscribe and leave us a review on Apple Podcasts or Stitcher. Thanks for listening!