Twelve million years ago, rhinos, elephants, and camels roamed North America.
Rhinos in Nebraska tells the s.
Until 1953, when a seventeen-year-old farm worker made an unbelievable discovery.
The explosion of a supervolcano a thousand miles away sent a blanket of ash that buried these animals for millennia.
But one day, in what we now know as Nebraska, everything changed.
They would gather at nearby watering holes--eating, drinking, and trying not to become someone else\'s lunch.
Twelve million years ago, rhinos, elephants, and camels roamed North America