Bonnie Stevens

Brain Food - Reporter/Host

Technology is making the world a loud place. Researchers say 1 in 5 Americans over the age of 12 now has at least some hearing deficit. Smart Phones, iPods, video games - even chemicals - are making it worse...stressing out the cells in our ears until they give up their biological instinct to protect themselves. That's why audiologist and molecular biologist O'Neil Guthrie hopes to engineer biomedical therapies to amplify the cells' protective mechanisms. 


KNAU/Bonnie Stevens

State wildlife biologists are teaching a survival training course for native fish. In a watery lab near Cornville, Matt O'Neill with the Arizona Game and Fish Department, injects predatory game fish with a Botox-like substance to temporarily paralyze their jaw muscles. That gives him time to teach hatchery-bread native fish - like Razorback Suckers and Bonytail Chub - to steer clear. 


Getty Images

When bears raid campsites, it might be because of a relationship that developed thousands of years ago between humans and carnivores. That's what an archaeologist at Northern Arizona University believes. Chrissina Burke is looking at ancient bison kill sites to prove that wild animals have been conditioned to see humans as food providers. 

Burke says, "The research focuses is really focused on how do humans impact animals on the landscape. So, what I've been looking at in that context is how carnivores came in, saw, and said, 'Oh hey look! A smorgasbord. Free food!" 

BBC

The arid Southwest is ideal for preserving plant and animal remains. It's a living laboratory for scientists. At the Ancient DNA Lab at Northern Arizona University, wildlife geneticist Faith Walker is using tiny pieces of mummified biological material to learn more about life on Earth thousands of years ago.


KNAU/Bonnie Stevens

Flagstaff has long been a training destination for world class athletes. The high altitude makes their bodies produce more red blood cells and absorb more oxygen, which in turn builds their endurance and speed. Canadian exercise physiologist Trent Stellingwerff wants to know what else happens when elite athletes train at 7,000 feet. 


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