CT scans of a 2,400-year-old Egyptian mummy show that her embalmers left a brain-removal tool  in her skull, which had been filled with resin. Scientists used an endoscope to get a closer look at the tool and remove it. “Some parts [of the brain] would be wrapped around this stick and pulled out, and the other parts would be liquefied,” said Mislav Čavka of the University Hospital Dubrava. This is only the second time that such a tool has been found within a mummy.