What Is Natural?: Coral Reef CrisisDuring the late 1960s and 1970s, massive herds of poisonous crown of thorns starfish suddenly began to infest coral reef communities around the world, leaving in their wake devastation comparable to a burnt out rainforest. In What is Natural?, Jan Sapp both examines this ecological catastrophe and captures the intense debate among scientists about what caused the crisis, and how it should be handled. The crown of thorns story takes readers on tropical