Many national parks don't allow pets, but these parks offer hundreds of miles of pet-friendly trails for you to safely ...

Home to 59 reptilian species—including sun-loving desert tortoises, harmless whiptail lizards, and Texas horned lizards — Big Bend NP leads among national parks for reptile spotting.

Tucked away in a remote bonebed in Arizona's Petrified Forest National Park laid hundreds of fossils, including a fragile jawbone belonging to one of the oldest-known flying reptiles: the pterosaur.

A remarkable finding has surfaced in the colorful, fossil-rich badlands of Arizona’s Petrified Forest National Park: North America’s oldest known pterosaur. The newly identified species — a ...

But across all parks and species — particularly in remote areas — the avoidance behavior generally persisted. Teen suffers ...

A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said. Named Macadens olsoni, the fossils were found in the Ste. Genevieve Formation, dating ...

Robbins mentioned that he set up his camera, with permission, at an elevation of 8,500 feet in Lassen Volcanic National Park, which is known to be one of the snowiest places in the United States.

The roughly half-inch tooth from the uncovered species, named the Macadens olsoni, was found in the depths of Ste. Genevieve Formation at Mammoth Cave National Park in Kentucky.