Well, it looks like it hurts but it's really just a burp or a cough from this friendly alpaca I photographed today at the Children's Zoo in Beacon Hill Park.These delightful creatures are recent additions to the zoo. It's not really a zoo in the sense of having a wide range of wild animals. It has some goats who put up with endless petting from many children, a Vietnamese potbellied pig, some chickens and ducks, peacocks, a few sheep and some miniature horses. While we were there this morning one of the goats was giving birth before an admiring and awestruck bunch of children and their parents.Alpacas are usually very wooly. The zoo alpacas have been shorn so they don't get too hot in our summer weather.