Veterinarians say the surgery went well for Castro, the Sacramento Zoo's Sumatran Tiger. The 15-year-old big cat was suffering from urinary tract stones. About 30 different specialists from the zoo, UC Davis and Sutter Medical Group participated in yesterday's procedure. Castro has already undergone chemotherapy after being diagnosed earlier this year with lymphoma.
Photo: Thumbnail photograph of Sumatran tiger pictured at top of the page is not Castro. ©abxyz/Shutterstock