Scientists Detect Ancient Dinosaur Blood
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Scientists have identified chemical evidence of red blood cells in a 115‑million‑year‑old dinosaur bone, a discovery that could reshape understanding of prehistoric biology. The study, published Monday in the journal Proceedings of the National Academy of Sciences, used advanced microscopic imaging and chemical analyses to locate microscopic structures resembling red blood cells and to detect heme, the oxygen‑carrying molecule in hemoglobin, within the bone. The fossil, a partial hind limb of Aratasaurus museunacionali, was excavated in 2008 from the Mina Pedra Branca site in northeastern Brazil. Lead author Kliti Grice, an organic geochemist at Curtin University, emphasized that this finding demonstrates that biological molecules can survive fossilization. While some experts question the interpretation of the structures, the study offers a new approach for examining ancient tissues.
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Timeline
- On January 1 1990 First reports of blood‑cell‑like structures in fossils.
- On November 2 2026 Guardian reports heme detection in dinosaur bone.
- On November 3 2026 CNN publishes study on fossilized blood cells.
Why it matters
Immediate US impact: No direct economic impact reported Possible long-term US impact: Potential for new scientific methods Most affected groups: Researchers and academics Reader priority: High interest for science enthusiasts
Coverage notes
Center: Coverage from Cable News Network, BBC Wildlife Magazine, BGNES frames this as a developing news story: Scientists Detect Ancient Dinosaur Blood. Reporting emphasizes verified facts, named sources, and near-term impact for readers. Left: Left-leaning desks covering the same development typically emphasize public impact, institutional accountability, and who is most affected. Right: Right-leaning desks covering the same development typically emphasize practical outcomes, market or security stakes, and institutional response.
Primary report
CNN — Scientists Detect Ancient Dinosaur Blood
Sources
JQJO Editorial Desk · Human reviewed · AI assisted. Report a correction.
