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Strange mammal ancestor laid huge leathery eggs, key to surviving the world's worst mass extinction
Researchers identified an early mammal ancestor whose eggs may have helped it survive the Great Dying 250 million years ago.
Detailed imaging of a 250-million-year-old fossil has revealed the first proof that the ancestors of mammals laid eggs. The ...
Researchers studying a 250-million-year-old fossil have found the first ever proof that mammal ancestors laid eggs, with the ...
Illustration of a baby Lystrosaurus that died in its egg, based on a fossil that provides tangible evidence to support the ...
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