Fossilised red blood cells found in 115m-year-old dinosaur’s bone, say scientists
But that is what researchers are claiming to have discovered after analysing the hind leg bones of a small, meat-eating dinosaur called an Aratasaurus that lived and died in what is now north-eastern Brazil 115m years ago.
The Guardian World2 个来源阅读 1 分钟归档于2026年11月2日