Helios (IMAGE) Genetics Society of America Caption This is Helios, an approximately 3-year-old cattle dog/greyhound mix with Lucky Dog Animal Rescue. Credit Lucky Dog Animal Rescue <a href="http://www.luckydoganimalrescue.org" target="_blank">www.luckydoganimalrescue.org</a> Usage Restrictions Please credit Lucky Dog Animal Rescue and include the link License Licensed 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.