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Watch Crash Course Biology Season 2 Episode 48 Online

  • 1.5/10
  • COUNTRIES: United States of America
  • Subtitles: English

We tend to think life fits in two tidy categories: male or female, XX or XY. But it’s so much more diverse and complicated! In this episode of Crash Course Biology, we’ll discover sex and sexuality as a continuum across life. We’ll learn why humans are the only species with gender, and why same-sex mating is more common than you might think.