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Published online 17 May 2002 | Nature | doi:10.1038/news020513-11
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Asteroid let dinosaurs rule
Impact may have caused mass extinction that let hardy giants thrive.
A huge asteroid smashing into Earth may have let dinosaurs take over the Earth 135 million years before another one wiped them out, a controversial new study suggests.
Dinosaurs flourished in the wake of a mass extinction 200 million years ago.
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