Dinosaurs

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EvolutionMay 7, 2008

Were Dinos on Their Way Out Before the Meteor?

Fossil data presented at an evolution conference at The Rockefeller University indicate that pterodactyls got steadily larger, possibly because smaller ones couldn't compete with birds. Which could mean that the dinos were in trouble even before the meteor hit. Steve Mirsky reports.

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Scientific American Logo
EvolutionFebruary 15, 2006

Avian flu, marijuana policy, new tyrannosaur

In this episode, Scientific American staff editor Christine Soares talks about avian flu; Bruce Mirken discusses marijuana policy in the U.S. and England; and paleontologist Gregory Erickson describes the newfound long-lost cousin of T. rex. Also: test your science smarts with our quiz and hear how yesterday's comics might have handled today's news.

Steve Mirsky