I seem to remember they were on a list of ten smelliest animals (Animal planet show) along with foxes, skunks, wolverines, etc.
It’s funny though, there are a lot of lists, and they are all different. Frankly, it seems like most every animal can stink at one time or another. And people that work with them each think theirs is the worst - one of the most vivid descriptions I’ve read was a man who worked the walrus room at a zoo.