Post all your weird/awesome underwater creature pics and info here!
I'll start with this prehistoric shark that was
discovered recently near Japan:

Flaring the gills that give the species its name, a frilled shark swims at Japan's Awashima Marine Park on Sunday, January 21, 2007. Sightings of living frilled sharks are rare, because the fish generally remain thousands of feet beneath the water's surface.
Video of the shark in action! Unfortunately it died shortly only hours after it arrived at the park.
