Is Mars habitable? A critical examination of Professor Percival Lowell's book "Mars and its canals," with an alternative explanation

Alfred Russel Wallace

1823–1913

Best known as the co-discoverer of natural selection, this tireless explorer also helped shape the science of biogeography through years of collecting and observing wildlife in the Amazon and the Malay Archipelago. His life mixed adventurous fieldwork with big, often bold ideas about how the natural world is organized.