Footprints made tens of thousands of years ago may look like they’ve been erased by time and weather, but — like invisible ink — they can sometimes reappear under the right conditions.

Pueblo Grande de Nevada — known as the "Lost City" — is an archeological site near Overton, Nevada. It’s a complex of villages inhabited by the Ancestral Puebloans for nearly a thousand years.

Artificial Intelligence is being applied to many areas of life, including forestry on the Colorado Plateau. A team at NAU is using AI models in conjunction with Light Detection and Ranging (LIDAR) technology.

The Dilophosaurus is probably the best-known dinosaur whose fossil remains have been found in Arizona. That’s because the movie "Jurassic Park” made it famous — or at least a version of it.

What does a flower look like to a hummingbird? New research says it’s probably nothing like what humans perceive because hummingbirds can spot ordinary colors blended with ultraviolet light.

Every spring, three species of nectar-feeding bats travel several hundred miles from Mexico into Arizona, New Mexico and Texas to reach maternity roosts where they rear their young.

In the summer of 2023, what seemed like tiny aliens turned up at the Wupatki National Monument. A visitor told park staff that tadpoles were wriggling about in a pool of standing water that had flooded the Ancestral Puebloan ballcourt.

Marine reptiles called Ichthyosaurs existed millions of years ago within a vast ocean that surrounded the supercontinent known as Pangea. They had streamlined bodies adapted for swift movement in aquatic environments.

The Species from Feces Lab at Northern Arizona University examines DNA in animal feces. The lab’s motto is "to be number one at number two.”

Fewer than 2% of North America’s bark beetle species attack trees, but those that do have killed billions of conifers across the West over the last 30 years.