A uniquely preserved prehistoric mudhole could hold the oldest-ever human footprints on the Arabian Peninsula, scientists say ...

A groundbreaking discovery has been made in northern Saudi Arabia, where archaeologists uncoveredhuman footprints believed to be 115,000 years old. These ancient prints, found in a lakebed in the ...

In 1999, an American trekked into the Australian desert alone, sparking an international rescue mission. Decades later, he returns to meet the people who tried to save him from himself. More than ...

Prehistoric humans in Brazil carved drawings in the rock next to dinosaur footprints, suggesting that they may have found them meaningful or interesting, a new study has found. The rock carvings ...

Arizona's saguaro cactus has evolved to thrive in the extreme climate of the Sonoran Desert, but after decades of rising heat, even these towering icons are showing signs of stress.