John Rodgers

Oct. 23, 2009

Extinctions from Algae?

Many scientists attribute the world's great extinction events to major catastrophes such as asteroid strikes and massive volcanic eruptions. We'll talk with researchers exploring an alternate theory -- that massive algal blooms led to mass extinctions.

extinction, algae, asteroid, dinosaur

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Michael Pollan Talks Plants and Food

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Tar Noir: Paleoforensics at the La Brea Tar Pits

\tThe La Brea Tar Pits are  world-renowned fossil sites for good reason—they're the mass graves of thousands of Ice Age creatures, each with a story to tell. Researchers at the nearby Page Museum clean the asphalt from the fossil remains, and using paleoforensics, recount the grim details of their deaths. In the process, clues emerge about what life was like in prehistoric Los Angeles.

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