Researchers led by Australia's Curtin University have reported discovering fossilized traces of blood cells in a 115-million-year-old dinosaur bone.
Researchers led by Australia's Curtin University have reported discovering fossilized traces of blood cells in a 115-million-year-old dinosaur bone.
The remains of Aratasaurus museunacionali, found in Brazil, contained microscopic structures resembling red blood cells alongside chemical signatures of heme, a component of hemoglobin. If confirmed, the findings could reshape our understanding of molecular preservation and provide new insights into dinosaur physiology.