No one wants to track wet or muddy footprints across a polished entryway floor. Nor is a pile of shoes inside the front door or a damp pair of boots in an entry closet exactly a style statement.

Study led by the University of Leicester links fossilised flying reptile tracks to animals that made them - Fossilised ...

Gary Johnson, a quarry worker, first noticed unusual bumps on the quarry floor, prompting the involvement ... and includes ...

Maybe you were walking across a sandy ... YOU have been. Footprints can disappear quite quickly - when the tide comes in, the rain washes them away or if someone cleans the floor.