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The Nature of Sex

The Nature of Sex is a PBS documentary series explaining how a diversity of life forms find their mates and conceive, raise, and protect their offspring. The series consists of four episodes, each of which deals with a different aspect of the nature of sex. The first episode looks at the primal instinct that causes animals to come together in order to pass along their genes to the next generation. The second episode examines how timing can be key in the mating process. The third episode shows marriage is just one of the natural world's many mating arrangements. And the fourth and final episode explains our sexual behavior evolved to improve the odds that our offspring would survive to have their own children.

Episode 1 Episode 2 Episode 3 Episode 4

Episode 5 Episode 6

Episode 1 - The Primal Instinct
This episode shows that birds, bees, barnacles and naked mole rats are driven to join forces to reproduce and pass along their genes to the next generation.

Episode 2 - A Time and A Place
From the changing phases of the moon to subtle chemical surges, this episode outlines the many cues that trigger sexual activity.

Episode 3 - The Sex Contract
This episode shows marriage is just one of the natural world's many mating arrangements. Throughout nature, males and females negotiate a wide range of carefully made plans for conceiving and raising offspring.

Episode 4 - Sex and the Human Animal
This episode explains our sexual behavior evolved to improve the odds that our offspring would survive to have their own children.

Episode 5 - A Miracle in the Making
This episode depicts the amazing diversity of ways animals mate, carry their young and give birth.

Episode 6 - The Young Ones
This episode presents the amazing variety of Nature's parenting systems.