Dinosaurs took over the planet because they could endure the cold, scientists say - Livescience.com

The researchers say their findings defy stereotypes of dinosaurs only thriving in warm, humid environments.

Dinosaurs took over the planet thanks to their surprising ability to endure freezing-cold temperatures, ancient footprints have revealed.  The dinosaur tracks, stamped into the sandstone and silts… [+4532 chars]

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