Dog with Ticks (image) University of California - Davis Share Print E-Mail Caption Many of the dogs researchers examined in Mexicali were infested with ticks. Some of the dogs carried thousands of ticks. Credit Janet Foley/UC Davis Usage Restrictions Please credit 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.