Indians who lived in Ohio up until the 17th century may have cannibalized their enemies, a Unversity of Toledo anthropologist says. "We've found clear evidence of cannibalism at three sites between Waterville and Rossford," said Dr. William Strothers, associate professor of anthropology. Because American Indians usually took great care in burying their dead, the discovery of skeletal remains of six people mixed with garbage pointed to cannibalism, Strothers said. The cannibals also may have removed the bone marrow and brains of their victims. In the excavated remains were many long, narrow bones sliced in such a way that the marrow may have been removed, Strothers said. And the skulls had been deliberately detached, possibly so the brains could be withdrawn, he said. "Cannibalism among North American Indians is not as uncommon as most people think," Strothers said. "This is ritual cannibalilsm we're talking about. These people were quite able to meet their nutritional requirements through other methods." The cannibals, who probably were eating their enemies to show contempt and to absorb such good qualities as bravery or cunning, lived near Toledo from 1400 until after 1600, he said. They were part of a group generally known as the Sandusky Tradition that moved into northern Ohio after 1300, he said. More advanced than the Woodland Indians who also inhabited the area, they drove the Woodland Indians from the region by 1450.