Angelou, Aging Cat (IMAGE) Oregon State University Caption Angelou, a 13-year-old rescue cat, is a senior feline who could benefit from early identification of chronic kidney disease, one of the leading causes of cat death. Credit (Photo by Theresa Hogue, courtesy Oregon State University) Usage Restrictions None 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.