Yahoo had a little photo feature about the 15 most dangerous animals. How come they didn't put humans in there? I would bet they're much more dangerous than all the rest put together.
The one that struck me most was the slow loris. It's a very small animal, and apparently, one of the only poisonous mammals. I know male koalas and duck-billed platyppi(?) have poisonous spurs on the back leg. But the slow loris exudes poison from glands near its elbows.