Human: The World Within

Defend

Episode 4 | 52m 33s | Video has closed captioning.

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.

Aired: 05/19/21

Expires: 06/16/21

Rating: TV-PG

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Problems Playing Video? | Closed Captioning