Three Smokey Bones restaurants in the Pittsburgh suburbs abruptly shut down on Tuesday, going dark overnight and leaving workers and regulars trying to figure out what just happened. The locations had been familiar stops in busy shopping hubs and along well-traveled suburban roads, which made the sudden closures feel even more jarring.

Smokey Bones is quietly going up in smoke. The BBQ chain abruptly shut down its Colonie, NY location on April 28, part of a fast-moving wave of closures sweeping across the country after its parent company FAT Brands Inc.

Dinosaur DNA may still be out of reach, but scientists are uncovering something almost as exciting—ancient blood vessels hidden inside fossilized bones. In a massive Tyrannosaurus rex nicknamed Scotty,

Bone marrow is the spongy tissue located within the hollow center of bones, serving as the primary site for the continuous production of red blood cells, platelets, and white blood cells. Despite its physiological importance,