Past Time is a podcast that explores how we know what we know about the past. There's a special focus on the fossil record - it is hosted by two paleontologists - but delving into the story of the past isn't limited to dry bones. Today's paleontologists use techniques drawn from other sciences including Physics, Chemistry, Geology, and Biology to figure out what extinct animals were like and how they lived. Whether you are just starting to learn about the amazing animals that have called this planet home, or you have been fascinated by fossils for a long time, we hope you will join us as we dig into past times. Keywords: Paleontology, Dinosaurs, Mammals, Reptiles, Birds, Animals, Fossils, Extinction
https://www.pasttime.org/series/past-time/
Episode 5: Throwing in Human Evolution
Humans are weird animals. We walk around on two legs, we have big brains...and we like to throw things at each other. Did all this happen in a gradual march to Homo sapiens? In this episode of Past Time, Adam and Matt talk to Dr. Susan Larson, an expert on the anatomy of living and extinct apes. Dr. Larson and Matt will try to convince Adam that mammalian and primate evolution is actually pretty interesting stuff. Dr. Larson's research introduced new wrinkles to the smoth transition from a chimp-like ancestor to us. Her work shows our close bipedal ancestors - like "Lucy" the Australopithecus and "Turkana Boy" the Homo erectus/Homo ergaster - had very different shoulder blades than ours that limited their ability to rotate their arms. This arrangement would have made throwing difficult for Homo erectus and you would have left him on the bench for the playoffs. The evolution of pitching in recent human ancestors shaped our modern anatomy and is part of what makes us human!
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