One of the great killers, leading beyond mere death into extinction, has been the fragmentation of biological communities. Our networks of communication and trade have cut through its living fabric, reducing undisturbed remnants into scattered scraps too small to maintain abundance and diversity. A death by a thousand cuts. Not as dramatic as harpooning whales or poaching elephants or clear-cutting rainforests, but this has been where the day-by-day work of death-dealing takes place, destroying our ecosystem across vast swaths of entire continents. Its signs, like another dead opossum or flattened skunk on the road, so commonplace as to pass unawares.