We plunder the ocean for food, dump our waste in it, respect its wildlife less than land-based creatures. Why? Is it a case of “out of sight, out of mind”? Marine biologist Helen Scales tells us what’s down there and what we’re doing to it.
The ‘subterranaut’ describes how the discovery of ancient bacteria miles beneath the Earth’s surface opens the possibility of finding life on Mars. He picks five books that show how our knowledge of life deep in this planet could lead us to discover it elsewhere.