A lion takes only the last deer in the herd. She does not dream of having so many cubs that the plains would be full of nothing but lions. There are … - Stephen Baxter

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A lion takes only the last deer in the herd. She does not dream of having so many cubs that the plains would be full of nothing but lions. There are simple laws. Most species figure them out; you are the exception. An ecology of a single species is not viable. A diverse, stable world would provide for you.