These ancient crustaceans are meager in size but mighty in history. A colony of prehistoric triops, a tadpole shrimp that’s existed for hundreds of millions of years, was beautifully captured by ...

Prehistoric Arizona was a wild place. Volcanoes, earthquakes and several incursions by the ocean remade the land over the course of millions of years. The reign of the dinosaurs was punctuated by ...

The relics of dinosaurs and prehistoric species abound in Arizona, telling the story of life on Earth from hundreds of millions of years ago. Based on records from the Paleobiology Database, a public ...

MESA — For those looking to step back in time, the Arizona Museum of Natural History in downtown Mesa offers a glimpse into our prehistoric past. Explore life-size dinosaur replicas, including the ...

Mesa Grande — the prehistoric site thought to be a religious center for the Hohokam people 1,000 years ago — has been closed to the public since early 2003. But on Saturday and Sunday during the ...

A man accused of causing a wrong-way crash on Interstate 10 in Phoenix in March has been arrested. Visitors and residents of Sedona are seeing a lot of smoke over the red rocks as a wildfire closes a ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Add Yahoo as a preferred source to see more of our stories on Google. For those looking to step back in time, the Arizona Museum of Natural History in downtown Mesa offers a glimpse into our ...