Arizona Science

Arizona Science explores the latest scientific research and technological innovations taking place in Southern Arizona and at the University of Arizona. Catch Arizona Science each Friday during Science Friday on NPR 89.1.


Episode 199: A history of eating

A recently published study by University of Arizona evolutionary biologists made some unexpected discoveries about what animals eat and why. John Wiens and his colleagues studied a thousand species and created a biological family tree. They say dietary habits for animals, including dogs, cats, cows and humans, can be traced back 800 million years.


 2019-09-13  5m