NPS / Jacob W. Frank

Researchers from Northern Arizona University put tiny fitness trackers on Arctic ground squirrels to track day-to-day movements. The results reveal how freezing weather and hungry babies shape their lives.

This week marks one year since four students were shot, one fatally, on Northern Arizona University’s Flagstaff campus. Now researchers are using the shooting as a case study to see if Twitter can reveal how communities respond to traumatic events.

Carol Chambers/Flickr

A lab at Northern Arizona University has developed a new way to identify rare and endangered bats … by extracting DNA from their droppings.

John Fowler

Chaco Canyon National Historical Park is noted for amazing structures called Great Houses – massive buildings constructed by the Ancestral Puebloans, who inhabited the nearly treeless high desert of northwestern New Mexico a thousand years ago. Besides local stone and earth, nearly a quarter million trees were harvested for beams in the buildings. 

Todd Haynie/Eastern Arizona College

During the last national election in 2014, college aged students accounted for just 4 percent of Arizona’s statewide vote. Secretary of State Michele Reagan wants to see that number increase this year. Arizona Public Radio’s Aaron Granillo reports.