One of the alleged greatest transformations in vertebrate evolution is said to be the emergence of creatures that traded fins for feet and transitioned...

Tim Clarey, Ph.D., and Frank Sherwin, M.A. Nothing put a damper on uniformitarianism like the Mount St. Helens eruption on May 18, 1980. That explosion...

There has been considerable debate among scientists over the origin of Grand Canyon. We all agree it was formed by the removal of some 1,000 cubic miles...