Paleoartist Peter Schouten's reconstruction of Microleo attenboroughi prowling along the branches of rain forest trees in search of prey. Peter Schouten/Courtesy of the University of New South Wales hide caption

toggle caption Peter Schouten/Courtesy of the University of New South Wales

Sauropods were one of the most successful groups of dinosaurs to ever walk the Earth. New research helps explain why. Stocktrek Images/Getty Images hide caption

toggle caption Stocktrek Images/Getty Images

Superhearing And Fast Growth ... Scientists Learn Why Sauropods Ruled

  • Download
  • <iframe src="https://www.npr.org/player/embed/475597917/475773289" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Katherine Du/NPR

Chew On This: Slicing Meat Helped Shape Modern Humans

  • Download
  • <iframe src="https://www.npr.org/player/embed/469676852/469837092" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

National Geographic paleoartist John Gurche used fossils from a South African cave to reconstruct the face of Homo naledi, the newest addition to the genus Homo. Photo by Mark Thiessen/National Geographic hide caption

toggle caption Photo by Mark Thiessen/National Geographic

South African Cave Yields Strange Bones Of Early Human-Like Species

  • Download
  • <iframe src="https://www.npr.org/player/embed/437249183/439085926" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

An ancient stone tool unearthed at the excavation site near Kenya's Lake Turkana. It's not just the shape and sharp edges that suggest it was deliberately crafted, the researchers say, but also the dozens of stone flakes next to it that were part of the same kit. MPK-WTAP hide caption

toggle caption MPK-WTAP

Chipping Away At The Mystery Of The Oldest Tools Ever Found

  • Download
  • <iframe src="https://www.npr.org/player/embed/407968529/408549746" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The most recent common ancestor of all today's snakes likely lived 120 million years ago. Scientists believe it used needle-like hooked teeth to grab rodent-like creatures that it then swallowed whole. Julius Csotonyi/BMC Evolutionary Biology hide caption

toggle caption Julius Csotonyi/BMC Evolutionary Biology

Earth's First Snake Likely Evolved On Land, Not In Water

  • Download
  • <iframe src="https://www.npr.org/player/embed/407967852/408159260" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The skull of a chicken embryo (left) has a recognizable beak. But when scientists block the expression of two particular genes, the embryo develops a rounded "snout" (center) that looks something like an alligator's skull (right). Bhart-Anjan S. Bhullar hide caption

toggle caption Bhart-Anjan S. Bhullar

How Bird Beaks Got Their Start As Dinosaur Snouts

  • Download
  • <iframe src="https://www.npr.org/player/embed/406256185/406358754" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Reconstruction of the giant filter feeder, scooping up a plankton cloud. Aegirocassis benmoulae was one of the biggest arthropods that ever lived. Family members include today's insects, spiders and lobsters. Marianne Collins/ArtofFact hide caption

toggle caption Marianne Collins/ArtofFact

Think Man-Sized Swimming Centipede — And Be Glad It's A Fossil

  • Download
  • <iframe src="https://www.npr.org/player/embed/392359786/392375512" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

An artist's rendering of what Dearcmhara shawcrossi probably looked like in dinosaur times. Todd Marshall/University of Edinburgh hide caption

toggle caption Todd Marshall/University of Edinburgh

Ancient Scottish Sea Reptile Not 'Nessie,' But Just As Cute

  • Download
  • <iframe src="https://www.npr.org/player/embed/376132611/376660087" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Workers at the National Geographic Museum in Washington grind the rough edges off a life-size replica of a spinosaurus skeleton. Mike Hettwer/National Geographic hide caption

toggle caption Mike Hettwer/National Geographic

Crocodile Meets Godzilla — A Swimming Dino Bigger Than T. Rex

  • Download
  • <iframe src="https://www.npr.org/player/embed/347488364/347738228" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Love your hair. Artists' depictions of a Neanderthal man and woman at the Neanderthal Museum in Mettmann, Germany. Martin Meissner/AP hide caption

toggle caption Martin Meissner/AP

Neanderthal Genes Live On In Our Hair And Skin

  • Download
  • <iframe src="https://www.npr.org/player/embed/267923336/268404429" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A family of elephants in Kenya's Maasai Mara game reserve. Tony Karumba/AFP/Getty Images hide caption

toggle caption Tony Karumba/AFP/Getty Images