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Thursday, August 31, 2000 Martian Ecosystem Ecosystem Credit: Unknown The ecosystem of Earth as we understand it today consists of billions of species, all interacting with each other in ways that we sometimes do not understand. As soon as one species is removed, all the organisms interacting with it are affected, and thus like a giant circle of dominoes all of the species in the entire ecosystem are affected, usually adversely. Usually old species or new ones take the place of the eliminated species, and the ecosystem survives. But can we take this risk on Mars? @ 13:19 EST