beach cast coast costline feet foot footprint footprints gravel impression imprint imprints sand shadows warm wave waves activity animals colors colours dogs evidence grainy impressed impressions imprinted indented light patterns paw-prints shadow textures tracks antispot blod blody bloodstain blot blotch fleck hand.wall hands imprinting kill old red shot smear smudge spot spotting stain killer boot-prints boots Soil work workplace tire-tracks tyre-tracks claws clear distinct dog mark marked paw-print surface surfaces cretaceous-period dinosaur dinosaur-tracks embedded geological geology hard palaeontology paw prehistoric rock sharp solid toes park pedestrians vehicle-tracks vehicles walkers