White-tailed deer (IMAGE) University of Washington Caption This image shows two female adult white-tailed deer and one fawn. A new study shows that humans had both positive and negative influences on this species in northeast Washington. Researchers found that some activities, especially agriculture and logging, increased food available to deer. But, the study also found that vehicle collisions were one of the most common causes of death for deer. Credit Taylor Ganz Usage Restrictions Must include credit License Original content 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.