Link to the Show / Show NotesNOVA scienceNOW producer Joe McMaster asks NOVA scienceNOW host Neil deGrasse Tyson why everyone should know about the Permian extinction. NOVA scienceNOW airs five Tuesdays a year on PBS and is available for viewing 365 days a year online.Produced by Susan K. Lewis. Audio editing by David Levin. Interview conducted by Joe McMaster. Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan and Kavli foundations.To learn more about the Permian extinction, visit the NOVA scienceNOW Web site at http://www.pbs.org/nova/sciencenow

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