View the powerpoint with audio from Bill Ripple's presentation, Using Large Carnivores for Restoring Western Ecosystems, at Utah State University.
Listen to Bill Ripple on Access Utah (Utah Public Radio) about his long term study of the ecosystem in Yellowstone National Park
Listen to Mess O' Predators, a segment from The Discovery Files which features new advances in science and engineering sponsored by the National Science Foundation.
Visit The Environment Report's website to view it's story and corresponding audio report entitled "Wolves Make Mark On Yellowstone."
Listen to Dr. Ripple's interview with the BBC on the positive impact of wolves upon the ecosystem of Yellowstone Park (mp3/3MB)