A St. Louis researcher has dug up a pretty meaty discovery. Neanderthals were almost exclusively meat-eaters. Dr. Eric Trinkaus at Washington University says that means Neanderthals were smarter and much better-organized hunters than previously thought. He studied the chemical make-up of 28,000 year old bones to find out what Neanderthals snacked on. Neanderthals migrated from Africa to Europe 300,000 years ago. They abruptly disappeared from the fossil record about 28,000 years ago…about 4,000 years after the appearance of humans.