Still today, scientists continue to make discoveries in the Grand Canyon that could alter history. Carol Dehler and his team are responsible for the very latest, challenging an old hypothesis ...

The Cambrian-age Tonto Group is a set of rocks famous for holding clues to the burst of new life that reshaped Earth 500 ...

As much as it is a historic discovery under the Grand Canyon, it does not mean people’s lives ... Many have expressed worry, according to a recent research report stating that contaminated water was ...

The Grand Canyon may rewrite the textbooks on the Cambrian Explosion—a key turning point in Earth's history when there was a sudden boom in complex life and the emergence of all the major animal ...

Lewis Thompson set up his camera along the rim of the Grand Canyon before stepping in front of the lens to take a photograph. The 40-year-old Colorado man tripped and lost his balance as he ...