Ryan Gosling & Evan Rachel Wood's Zoo DayThe stars of The Ides of March get a break from filming – with an elephant, a cougar and a sloth

Credit: Courtesy of the Cincinnati Zoo

Updated: Thursday Mar 03, 2011 | 06:00 AM EST

SWEET CAROLINE

The stars "wanted to learn more about each animal they met," says Tiffany Barnes, a zoo spokesperson. Gosling even chatted with this porcupine, Caroline, and her keeper.