Dinosaur blood molecules found preserved after 115 million years
Scientists report dinosaur blood in 115-million-year-old bones, with heme and collagen-linked amino acids preserved. The finding could reshape fossil science and astrobiology.
Ancient dinosaur blood traces reported in 115M-year fossil
A new study reports chemical signs consistent with ancient dinosaur blood in a 115 million-year-old Brazilian fossil, though some researchers remain skeptical.