A column Friday by Bettie Rencoret incorrectly reported that veterinarian Dave Gantenbein had removed rocks from the abdomen of a desert tortoise. In fact, the vet removed bladder stones, caused by poor diet. AD Quality Auto 360p 720p 1080p Top articles1/5READ MORESurfer attacked by shark near Channel Islands calls rescue a ‘Christmas miracle’160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!