By examining fossilized bone tissue, a new study finds rapid growth was an asset for survivors of the Great Dying 250 million years ago, Earth’s largest mass extinction event.
A replica fossil of the titanosaur Patagotitan, one of the largest dinosaurs ever discovered. It would have weighed about 70 tons (63.5 metric tons.)
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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.