Some of these giant vegetarians were as tall as a 3-story building. Microscopic analysis of their teeth, bones and eggshells reveals how they grew, what they ate and even their body temperature.
Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...
WASHINGTON (Reuters) - A fossil site in New Mexico with numerous dinosaurs, including the gargantuan Alamosaurus, dates to ...
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