Philip Kiefer, Staff Writer at Popular Science

Philip Kiefer

Staff Writer


  • Interested in ecology, evolution, and the way that humans think about the natural world.
  • Covered climate and COVID for National Geographic, FiveThirtyEight, and Sierra Magazine. Previously worked at Outside and the Lens, a nonprofit watchdog outlet in New Orleans.
  • Likes to read the acknowledgments section, and will drone on about horror movies as long as you let him. (His favorite is Texas Chainsaw Massacre.)


Favorite weird science fact

Beaver teeth are self-sharpening. The front enamel of the tooth contains iron, so it wears down much more slowly than the back side, creating a natural chisel shape.

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