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S4
剧集列表
2009/09/01 S4 E8
Sleep, First Primates, Earthquakes in the Midwest
2009/08/25 S4 E7
Saving Hubble Update, Gangster Birds
2009/08/18 S4 E6
Public Genomes, Algae Fuel, Arctic Ocean Seafloor
2009/07/28 S4 E5
Moon Smasher, Secrets in the Salt, Bird Brains
2009/07/21 S4 E4
Picky Eaters, Capturing Carbon, Sea Lions and Walruses
2009/07/14 S4 E3
Marathon Mouse, Dinosaur Plague
2009/07/07 S4 E2
Hunt for Alien Earths, Art Authentication
2009/06/30 S4 E1
Diamond Factory, Anthrax Investigation, Auto-Tun
