Azumeh the mandrill. Happy or sad, he's got just the manipulatable mug for the job - but it's definitely his angry face that gets him the most attention. Just one command from his trainer and there you go, one angry-looking mandrill.
All kids love a piggy back ride from dad, and these two baby Golden Lion Tamarins are no exception. In Tamarin tradition, the father carries the babies, with mom stepping in only to feed them when they feel hungry. (Photo by Chris Balcombe)