What is the northern white-cheeked gibbon? Though they might look a bit like monkeys, northern white-cheeked gibbons are officially classified as apes. One easy way to tell the difference is that ...

There's a lot of monkeying around at the Philadelphia Zoo these days now that the newest white-handed gibbon is growing up.

There's a lot of monkeying around at the Philadelphia Zoo these days now that the newest white-handed gibbon is growing up.