A bizarre fossil called Prototaxites, which was the largest life-form on land 400 million years ago, may have been a ...
Morning Overview on MSN
400 million years ago Earth’s biggest land life-form was a mystery giant
Hundreds of millions of years before dinosaurs, the tallest things on land were not trees or animals but towering, trunk-like ...
Ancient enzymes show life’s nitrogen signal stayed unchanged for billions of years, helping scientists read early Earth.
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