Naked Science - Extinctions

Seizoen: 2006 - Aflevering: 15 / 54 - Eerst uitgezonden: 02 november 2006 - Episode ID: 380863

Dominant life forms have been wiped out before as our planet has a history of mass extinctions. A huge asteroid impact is credited with the passing of the dinosaurs, but what caused the others? This hour examines three of the major extinctions in the Earth's history and the possibility of another occurring.