Petrified wood forms through a process known as permineralization, which happens under very specific conditions. It all ...

“We're working on rehabilitating our prairie dog population, so maybe someday we'll get to reintroduce the black-footed ferret, which is the most endangered mammal in North America,” Barnett said. The ...

While most come to see one of the world's largest concentrations of brilliantly colored petrified wood, many leave having glimpsed something more. The current 346 square miles of Petrified Forest ...