was) an ancient beach and cave-pocked cliffs and a human footprint (then ages of silting cover a footprint crouched. intent and cave-pocked cliffs and frail seams of silt save a footprint (is crouched, brushing layers of silt uncovers -- a spark across two instants -- a footprint (In Le Rozel, France, researchers unearthed 257 Neanderthal footprints dated to about 80,000 years ago.)