Mrs. Smith's boys often forgot to close the doors. Muddy footprints were found entering and exiting the kitchen. A fine layer of flour covered the dried footprints. Mrs. Smith's boys loved ...

Have you ever been for a walk and noticed a trail of footprints? Maybe you were walking across a sandy beach, along a muddy path or in the park after it had been snowing. You might even see them ...

Muddy footprints left on a Kenyan lakeside suggest two of our early human ancestors were nearby neighbors some 1.5 million years ago. By CHRISTINA LARSON The Associated Press ...