evidence feet foot ground Mud sand sole trace traes activity animals beach colors colours dogs grainy impressed impressions imprinted imprints indented light patterns paw-prints shadow textures tracks boot-prints boots footprints Soil work workplace tire-tracks tyre-tracks accident asphalt body chalk contour crime scene criminal dead death drawing figure forensic form investigation kill law line marker murder mystery outline police profile proof saving silhouette street victim violence park pedestrians vehicle-tracks vehicles walkers claws clear distinct dog impression imprint mark marked paw-print shadows surface surfaces barefoot barefooted damp-beach-sand direction grains gray grey heavy human not-alone parallel prints rough toes angles appearance appetite between blind-bugs bugs damage damaged danger dangerous destruction destructive hungry insatiable insects riddled rocks surfaced surfacing termites texture textured trail trails voracious white-ants