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Researchers Discover Preserved Blood Vessels in T. Rex Fossil — Here’s How They Survived Millions of Years

When Jerit Mitchell stared at the computer screen displaying scan images from a 66-million-year-old bone, he knew something was wrong. The structures threading through the fossilized rib didn’t match anything he’d seen in paleontology textbooks. His mentors gathered around the monitor, their expressions shifting from curiosity to excitement as they realized what they might be…
