Kimolo Mulwa at the site of the first hominin footprint discovery in 1978. Deep, sand-filled depressions to his left show hippopotamus tracks in cross section. Anna K. Behrensmeyer We collected ...

like beach sand, that left a layer on the landscape. Then a light rain fell onto the ash to create something like wet cement -- an ideal material for trapping footprints. Birds and mammals left a ...

Our ancient river flooded and filled the footprint with mud and sand, protecting it. So we've got our protective layer of sand. What happens next? WILL:So next thing is, sea level rose so our ...

By Lynsey Chutel Reporting from London Quarry workers in England have discovered the clawed footprints of a 30-foot-tall predator and the sunken tracks of other dinosaurs, in what paleontologists ...

Heidelberg Materials Australia, formerly known as Hanson Australia, is pleased to announce the acquisition of the Hardcore ...