Engraved prehistoric human bones show ritualistic cannibalism

Engravings on a human bone from a prehistoric archaeological site in a cave in southern England shows that human cannibals ate their prey and then performed ritualistic burials with the remains, scientists said on Wednesday.The forearm bone appears to have been disarticulated, filleted, chewed, and then engraved with a zig-zag design before being broken to extract bone marrow, said scientists from Britain's Natural History Museum who conducted the analysis.The finding, published in the journal P