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Icky and itchy, yes, but lice hold important clues to human evolution. 10:53
Full Program: Explore the origin of our solar system and the start of life itself. 51:30
Can we predict earthquakes? NOVA scienceNOW visits Haiti in search of answers. 10:39
Primatologist Brian Hare sees whether a bonobo can solve a puzzle to get a slice of apple. 00:55
Full Program: Einstein's letters shed light on his revolutionary discoveries and his forbidden loves. 01:46:18