Fossil Footprints Help Uncover the Mysteries of Bipedal Crocodiles
[ad_1] More than 113 million years ago, a strange reptile lived in what is now South Korea. It strode around
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Footprints
The First Footprints on Mars Could Belong to This Geologist
[ad_1] Jessica Watkins spent her PhD studying landslides on Mars. Now she is among the few humans with a shot
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“Ghost Flights” Haunt the Skies, Enlarging Carbon Footprints
[ad_1] When Allison Vanore stepped onto a plane last week, she was shocked to find scores of empty seats. Vanore,
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