User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-98.192.166.156-20121201185934/@comment-1758220-20121203000840

It doesn't even make sense. I'd suggest that perhaps swimming would dilute the posionous fluid he keeps stored in his mane, but then he douses himself in a waterfall to recuperate. There's no reason I can think of that he wouldn't swim.