Season 12, Episode 4 Nature of Sex: Primal Instinct
First Aired: November 22, 1993
A six-part look at "The Nature of Sex" begins with "The Primal Instinct" to pass on one's genes. Included: Japanese red-crowned cranes, performing an "ice ballet"; and a male bowerbird building a structure to attract a mate.
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- Premiered: October 10, 1982
- Rating: TV-G
- Premise: PBS's signature (and multi-award-winning) natural-history series uses gifted wildlife documentarians and stunning photography to reveal what its first host, Donald Johanson, called `the magic and mystery of the fascinating natural world.' The series has ga… (more)