The Mojave Desert Tortoise (image) Arizona State University Share Print E-Mail Caption As humans, we know that some of our activities can cause cancer to develop in our bodies. Smoking, poor diets, and pollution are just a few of the things that contribute to an increased risk of cancer. But, are human activities also causing cancer in wild animals? Are we oncogenic -- a species that causes cancer in other species? Researchers from Arizona State University's School of Life Sciences think so and are urgently calling for research into this topic. Credit Sandra Leander Usage Restrictions Only with photo credit. This includes in all instances of a website. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.