Episode 4. Extinction & RebirthDVD - 2005
About 250 million years ago, all life nearly disappeared from the planet. Scientist now believe the cause was an eruption of the earth's molten core that triggered global climage change. The resulting drop in oxygen levels allowed dinosaurs to rise to supremacy because of their respiratory systems. But they too suffered a catastrophic end some 150 million years later. This episode follows these gargantuan creatures through life and death, and chronicles the early rise of mammal as the dominant creature on the planet.
Publisher: [Montréal] : National Film Board of Canada, c2005
Description: 1 videodisc (ca. 50 min.) : sd., col. ; 4 3/4 in
Branch Call Number: DVD 550 Mir