It was 250 million years ago, and the world had just been through hell. Something -- perhaps an asteroid impact, perhaps a spate of volcanic eruptions darkening the skies worldwide -- had wiped out 70 percent of the life on earth.
But scientists now report they have found the footprints of small dinosaurs, preserved in fossilized soil, made less than 2 million years later -- a blink of an eye in geological terms. They are the oldest evidence of dinosaurs ever found.
"This would have been...Full Story