‘It’s said that we know more about the surface of the moon than our own oceans, and the same may be true of the lifeforms that inhabit them. Cold seawater and unfathomable pressures create alien landscapes populated by creatures as strange as they are beautiful. They swim through a star-studded sea where, instead of supernovae exploding, the ominous glow of anglerfish lures blink on and off, portending death for a wayward fish; and instead of glimmering stars splashed across the sky, bioluminescent plankton turn the sea a brilliant, twinkling blue.’ (Wired Science).