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Tiny ancient fish unlocks secrets of the evolution of Earth’s early vertebrates

By Will Dunham WASHINGTON (Reuters) – This is certainly not just another fish tale. A tiny jawless fish that lived more than half a billion years ago is providing scientists with a treasure trove of information about the very dawn of vertebrate life on Earth. Researchers on Wednesday described about…

Tiny zircon crystal is oldest piece of Earth ever found: scientists

By Will Dunham WASHINGTON (Reuters) – To put it mildly, this is one gem of a gem. Scientists using two different age-determining techniques have shown that a tiny zircon crystal found on a sheep ranch in western Australia is the oldest known piece of our planet, dating to 4.4 billion…

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