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NOVA: 33x18
Family That Walks on All Fours
This episode focuses on a scientific debate about five siblings in a Turkish family who walk on all fours. When, in 2005, scientist Uner Tan labeled them “genetic throwbacks,” they became part of the dialogue about a possible missing link to an era when humans walked on all fours. Included: comments from geneticist Sean Carroll and anthropologist Brian Richmond, who disagree with Tan; and interviews with and footage of the family.
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33 - 1Mystery of the Megaflood Sep. 20, 2005
33 - 2Sinking the Supership Oct. 04, 2005
33 - 3Einstein's Big Idea Oct. 11, 2005
33 - 4Volcano Under the City Nov. 01, 2005
33 - 5Hitler's Sunken Secret Nov. 08, 2005
33 - 6Newton's Dark Secrets Nov. 15, 2005
33 - 7Storm That Drowned a City Nov. 22, 2005
33 - 8The Mummy Who Would Be King Jan. 03, 2006
33 - 9Deadly Ascent Jan. 17, 2006
33 - 10The Perfect Corpse Feb. 07, 2006
33 - 11Jewel of the Earth Feb. 14, 2006
33 - 12The Ghost Particle Feb. 21, 2006
33 - 13Arctic Passage Feb. 28, 2006
33 - 14The Great Robot Race: Nova Mar. 28, 2006
33 - 15Voyage to the Mystery Moon Apr. 04, 2006
33 - 16Dimming the Sun Apr. 18, 2006
33 - 17Wings of Madness Nov. 07, 2006- 33 - 18Family That Walks on All Fours Nov. 14, 2006
- 33 - 19ScienceNOW: Extinction Oct. 03, 2006
- 33 - 20Underwater Dream Machine Dec. 26, 2006