Full Fathom 5000

This book gives an account of the remarkable discoveries that were made during the 1872-1876 voyage of the HMS Challenger, and it describes the strange and bizarre creatures that live in perpetual darkness a kilometer or more below the surface of the sea. The journey had momentous consequences: not only uncovering a whole vast new range of animals whose existence had never before been suspected but also initiating the systematic exploration of the oceans.