Smells like water

Hello world,
I've always thought Star-nosed moles were adorable, but I never suspected that they could do anything this cool. These animals, along with the water shrew, can smell underwater. They do this by breathing out bubbles, and then sucking the air back in. This was discovered by Kenneth Ketanya at Vanderbelt University. I wonder if all moles can do this, or platypi. And why would a mole be in the water anyway?
Here's the link;
http://news.discovery.com/videos/animals-submerged-sense-of-smell.html
Knights and away!