Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

88 | Neil Shubin on Evolution, Genes, and Dramatic Transitions

Mar 16, 2020
Neil Shubin, a distinguished professor and co-discoverer of the Tiktaalik fossil, dives into the wonders of evolution and genetic transitions. He addresses the age-old question of evolutionary adaptations, revealing how existing organs are repurposed for new roles. The discussion includes fascinating anecdotes from fossil expeditions and insights into the genetic links between fish fins and human limbs. Shubin also tackles the complexities of modern evolutionary debates and the impact of viral DNA on our genetics.
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ANECDOTE

Tiktaalik Discovery

  • Neil Shubin and his team discovered Tiktaalik in the Canadian Arctic after a multi-year search.
  • They used geological maps, aerial photos, and knowledge of Devonian-era rocks to pinpoint the fossil's location.
INSIGHT

Fossil Hunting

  • Finding fossils requires a trained eye, geological knowledge, and patience.
  • Each type of rock presents a unique learning opportunity for fossil discovery.
ANECDOTE

Hiccup Origins

  • Hiccups are caused by a phrenic nerve spasm, a pattern similar to how tadpoles and frogs breathe water.
  • This illustrates how seemingly unique human traits have evolutionary precedents in other animals.
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