ScienceScientists say fossilised red blood cells found in 115m-year-old dinosaur bone

Researchers examining hind-leg bones of an Aratasaurus from northeastern Brazil found structures resembling red blood cells and detected heme and traces of collagen amino acids. The team calls it a first, but another palaeontologist questions whether the structures are actually blood cells.

palaeontologydinosaur fossilsred blood cellsBrazil

TThe Guardian★★☆☆☆2026-11-02 20:00Original