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Hunt for Alien Earths, Art Authentication, Maydianne...

By peering into the sex lives of spiders, this evolutionary biologist has shown the upside of cannibalism.
Topic: NatureNatureNova

(Program not available for streaming.) Maydianne Andrade's career might seem like something out of a horror film (her favorite genre), but Andrade can't imagine how she would spend her days and nights if not studying the cannibalistic behavior of the Australian redback spider. She has discovered why it makes evolutionary sense for the males of this species, a type of black widow, to make the ultimate sacrifice, what she calls "adaptive suicide."

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