1 book bought = 1 book for free

The ocean world abounds in astonishing biological curiosities and extraordinary physical phenomena. Bioluminescence, for example, is one of the secret languages of the ocean's inhabitants, like the microscopic algae that emit a brilliant neon-blue light. Deep below the surface, environments seemingly hostile to all life are home to a number of enigmatic species. Deep in the abyss, soft fish thrive, coping with colossal pressures that would crush anyone. 

And what can we say about the life that huddles near underwater volcanoes that spew hot sulfides? Or the polar fish that make antifreeze to protect themselves from freezing temperatures? And of the phenomena of unprecedented violence that sometimes agitate the ocean - tornadoes, tsunamis, maelstroms, rogue waves... - that no human technology can thwart? 

Let's dive in and discover this surprising and unusual ocean world, an inexhaustible source of life and diversity!