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2026-04-15 17:00:14
WWW.LIVESCIENCE.COM
Strange mammal ancestor laid huge, leathery eggs and it was key to surviving the world's worst mass extinction
Using synchrotron X-ray CT scans of a fossilized, intact embryo, researchers found evidence that the plant-eating mammal Lystrosaurus laid eggs, which answers a key question about mammalian evolution.
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