Oliver in the Tub (image) University of Washington Caption Oliver, a 50-pound Border Collie, has the alertness, size, shiny coat, muscular strength and herding instinct characteristic of his breed. Above, he waits for his tub to be filled with water. Border Collies were one of the 10 breeds studied to learn about the effects of selective breeding on the dog genome. Credit Eric Tognetti Usage Restrictions For use only by news media and educational institutions, including museums 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.