Twenty thousand leagues under the sea, antediluvian marine life moves in the dark night of the abyss, feeding our fantasies. Algae, fish and unknown creatures fight for survival in a world that has very little in common with our own, and we are quite happy to leave these discoveries to Captains Nemo or Cousteau. Here on earth, we're content to dream about it, and our selection this week helps you do just that. Under the sea, under the sea...