Digging around in a Spanish cave called Gran Dolina, archaeologists have found butchered humans' fossilized bones. Researchers say the bones show that cave dwellers skinned, decapitated, and enjoyed other early humans, before throwing their remains into a heap with animals bones from other meals。

　　The study says the 800,000-year-old Homo antecessor bones could indicate the most "ancient cultural cannibalism … known until now." Adding to the nightmare: The hungry cavemen had a penchant for kids, since the 11 cannibalized humans uncovered were all youngsters. They speculate that the kiddos were easier to catch, and eating them was a good way to stop competitors from building their families。

　　Study coauthor José María Bermúdez de Castro, of the National Research Center on Human Evolution, said that marks near the base of some skulls hint that the diners decapitated humans to get the brain goodness inside. "Probably then they cut the skull for extracting the brain…. The brain is good for food."

　　The researchers believe that eating other humans wasn't a big deal back then, and probably wasn't linked to religious rituals or marked by elaborate ceremonies. They draw that conclusion from the fact that butchered human bones were tossed in the scrap heap along with animal remains。

　　There is some debate as to how frequently human was on the menu, but these researchers note that the Sierra de Atapuerca region had a great climate and that cannibalism didn't likely result from a lack of alternatives。