“Dinosaur blood found in fossils for the first time”

Key points

• Researchers confirmed intact biomolecules and mineralized red blood cells in a 115-million-year-old dinosaur.
• The study chemically identified oxygen-carrying heme in fossilized cells, a first.
• Specimens come from the juvenile Aratasaurus museunacionali found in Brazil.
• Hausmannite mineral helps preserve heme and other biomolecules like collagen.
• Findings may influence molecular paleontology and understanding of dinosaur biology.