A giant tortoise on skates

Today my wife and I celebrated two years of marriage, which meant heading to the Philadelphia zoo in the morning, tubing on the Delaware River in the afternoon, and a nice dinner when we got home. I've got plenty of new shots to share, but I'll start things off with one of the most unique ones, a Galapagos tortoise on skates;

It seems that this individual has trouble walking so the zoo staff rigged it up with some wheels. It got around just as well as any of the other tortoises in the enclosure, although I had never seen such a technique used to help a tortoise before.