Scientist discovered that the star-nosed moles can smell while underwater:
Biologist Kenneth Catania of Vanderbilt University in Nashville, Tennessee, US, says he became intrigued when he observed star-nosed moles (Candylura cristata) blowing lots of bubbles while they swam. Curious, he measured the rate at which the animals push air out of and back into their nostrils while under water.
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Great link.