Videos showing the ash filled aftermath of a volcanic eruption in Indonesia on Sunday have made their way across social media. Mount Marapi, located on the Indonesian island of Sumatra ...

The wet ash hardened like cement and was then covered by more ash ... and then through the middle toes. A human foot transmits weight from the heel, along the outside of the foot, across the ...

Until then, the oldest known footprints of human ancestors were tens of thousands of years old. But this trail, some 80 feet long and preserved in cementlike volcanic ash, had been made by some of ...

The Toba catastrophe theory states that the eruption covered South Asia in ash and blackened out the skies triggering an ice age, leaving only a dwindling human population in its wake. However ...