The Other Theory of EVOLUTION!

The Other Theory of EVOLUTION!

From What The If? by Philip Shane

May 20, 2026 · 55 min

About this episode

The episode explores the concept of Lamarckian evolution with historian Jessica Riskin, discussing how living beings actively shape their own evolution and environment.

What the if Lamarck was right? Stanford historian Jessica Riskin, author of "The Power of Life," is our guide into a universe where living things aren't passive passengers waiting for evolution to happen to them, but the active architects of their own bodies, their offspring, and the world around them. The line between creature and environment dissolves. Even the smallest beings turn out to be busy reshaping the planet. Stretch your neck. Reshape your descendants. Welcome to the Lamarckian universe. Want more Jessica? Grab her book at https://www.penguinrandomhouse.com/books/763654/the-power-of-life-by-jessica-riskin/ Find her at Stanford here: https://history.stanford.edu/people/jessica-riskin —————————————————— In the show, I mentioned a wonderful note from longtime listener Steve Scalici about our recent "no gasoline" episode. Here's Steve's full message: —————————————————— From: Steve Scalici Subject: No gasoline, phase 2 "Maybe THE best IFisode I've heard, perhaps because I've been noodling with that inevitable coming world without petroleum…how'd we function, how would society break down, would we be in a Soylent Green-scape? "Seems to me that this too was a corollary of…

People in this episode

Host: Philip Shane

Guest: Jessica Riskin

Topics covered

  • evolution
  • Lamarckian theory
  • active adaptation
  • environment
  • biology

Keywords

  • Lamarck
  • evolution
  • biology
  • adaptation
  • environmental impact

Mentioned in this episode

Organizations: Stanford

Books & works: The Power of Life

More episodes of What The If?

Explore listener stats, chart rankings, contacts and more on the What The If? podcast page.