Turtle

Aaron and Keith both speak wisdom. Also, you might be able to look online at the zoo's page and find out what species this is. Many zoos have user friendly websites and list what animals they have!

Please consider the Captive Animals mission for this spotting. Also, I'll offer a tip for shooting images at zoos and aquariums: take a photo of the ID sign directly after getting your animal shots. It always helps with later identifications. :-) http://www.projectnoah.org/missions/7973468

That's a tortoise