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Watch Becoming Human Season 1 Episode 3 Online

  • 8/10
  • COUNTRIES: United States of America
  • Subtitles: English

Once the hands of our ancestors became free, running became a part of our locomotion. Many animals are fast, but humans are the planet's best long-distance runners. How is this possible for such a strange gangly ape? The answer lies all over our bodies, in tiny pores unique to us - sweat glands.