On Humans

What Is a Human? The New Science of the Genus Homo ~ Chris Stringer

Apr 9, 2025
Join Chris Stringer, a leading paleoanthropologist at London's Natural History Museum, as he digs into the origins of our species. He unpacks the evolution of the genus Homo, including the surprising interbreeding with Neanderthals. Stringer also explores how diet shaped our expanding brains and the unique prolonged childhoods of Homo sapiens. Intriguingly, he discusses the significance of brow ridges in social signaling and how climate changes have shaped human development over millennia, drawing connections to modern environmental issues.
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ANECDOTE

Chris Stringer's Early Inspiration

  • Chris Stringer described how a childhood fascination with fossils and a school broadcast about Neanderthals sparked his interest in human origins.
  • Despite limited career advice, he pursued anthropology, focusing early on Neanderthal fossils and their distinction from Homo sapiens.
INSIGHT

Neanderthals: Cousins, Not Ancestors

  • Neanderthals were once thought to be direct ancestors of Homo sapiens but fossil evidence shows they remained distinctly different over time.
  • Genetic data now showing interbreeding complicates this, revealing Neanderthals as close cousins rather than direct ancestors.
INSIGHT

Neanderthal DNA in Humans

  • Modern humans outside Africa carry a small percentage of Neanderthal and Denisovan DNA from interbreeding 40,000-50,000 years ago.
  • This genetic mixing means Neanderthals are partly our ancestors even though we did not evolve directly from them.
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