Extremophile Fish dance on sulphur cauldrons (+Video)

Extremophiles: Four tonguefish samples from Nikko volcano. The fish at Nikko are almost twice as big as their counterparts on Daikoku. The largest sample here is less than 11 centimeters (5 inches) long. Image courtesy of Submarine Ring of Fire 2006 Exploration, NOAA Vents Program (Evolution Research: John Latter / Jorolat)