Anna El Khoury on Muck Rack

Anna El Khoury

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A battle against arsenic toxicity by Earth’s earliest complex life forms - Nature Communications

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By Anna El Khoury, Andrea Somogyi, Ernest Chi Fru, Farid Saleh, Ibtissam Chraiki, Jérémie Aubineau
| Nature Verified
Abstract The toxicity of arsenic has challenged life for billions of years, but the timing of when complex organisms first evolved strategies to cope with this threat remains elusive. Here, we study 2.1-billion-year-old (Ga) Francevillian macrofossils, some of Earth’s earliest complex life forms, to establish their biogenicity and to ascertain how they managed arsenic toxicity.
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