A perfectly preserved ancient tree fossil offered scientists an unprecedented view into a moment 42,000 years ago when the Earth’s magnetic field went haywire. The compelling 2021 study tells the ...
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Scientists discover how life began before Earth’s first universal ancestor
Living organisms share an ancestor called the last universal common ancestor, or LUCA. LUCA is estimated to have lived ...
A new study co-led by the Smithsonian’s Museum Conservation Institute and Harvard University reveals that 1.5–18 million-year-old mammalian fossils from Kenya contain proteins in their enamel that ...
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