Scientists examining dinosaur fossils report evidence of preserved red blood cells and collagen amino acids, a finding led by Curtin University that could change how researchers investigate ancient biological material

Palaeontologists found fossilised signs of dinosaur blood and collagen in a 115-million-year-old dinosaur bone. These structures were discovered in a theropod dinosaur known as Aratasaurus museunacionali.

Advanced techniques identified iron-containing heme and collagen, suggesting biological materials survived long periods. Researchers believe rapid burial in low-oxygen conditions contributed to preservation.

This discovery opens new avenues for understanding dinosaur biology beyond skeletal remains.