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The finding challenges assumptions about what these low-oxygen environments mean, and is drawing attention for reframing them as windows into how early life may have survived.","why":"A new study challenges the common view that oxygen-depleted waters are dead zones, reframing them as clues to early life on Earth.","tone":"neutral","entities":["American Geophysical Union","early life on Earth","oxygen-depleted ocean zones"],"summarized_at":"2026-10-04T17:55:23.689031Z","meta":{"via":"scan","lang":"en","link":"https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2026AV002570","term":"esa","hn_id":"49925742","comments":21},"nw":null,"promo":null,"kind":null,"importance":null,"hidden":false,"hide_reason":null,"judged_at":null,"title_en":"Oxygen-starved underwater zones may hint at early life","section_name":"Science","category_name":"Space 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