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A reproductive strategy where survival of a species is optimized by placing a premium on individual survival despite fluctuations of the environment. Favors large animals (and large animals favor this strategy) - animals that get pregnant more than once and the offspring of which require postnatal care before sexual maturity is reached. Spacing of pregnancy is important for survival of mother and offspring, and thus favors the evolution of a genetic basis for relative infertility (subfertility) - an intriguing notion that's the theme of Chapter 2 (Evolution and "Infertility") in Overcoming Infertility. The opposite reproductive strategy to r-selection. The word comes from the environment's Karrying capacity
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