Home / Series / Human: The World Within / Aired Order / Season 1 / Episode 4

Defend

Look at a nature survivalist, rancher twins, a doctor who survived Ebola and the recipient of a cutting-edge cancer therapy to uncover the wildly advanced biology that keeps us alive against all odds.

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  • Originally Aired May 19, 2021
  • Runtime 52 minutes
  • Network PBS
  • Created June 4, 2021 by
    Maretoh mod
  • Modified June 24, 2023 by
    chice73hw2