Imagine finding blood vessels in a T. rex bone! Researchers used high-tech X-rays to spot mineral shadows where blood once flowed in a 67-million-year-old rib. The healing process left behind tube-like structures, hinting at how these giants repaired themselves. It's like a dino CSI, revealing secrets of the past without damaging precious fossils. Who knew a broken rib could tell such a story? #DinoDiscovery #FossilFinds #Science #DinoDiscovery #FossilFinds