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Male reproductive success increased at a steady and steep rate, never dropping. Female reproductive success, on the other hand, plateaued after a single mate. Bateman focused mainly on the second set of data (sets five and six) when discussing his results. His conclusion was that the reproductive success of females does not increase with additional mates, as one fit mate was enough to successfully complete fertilization, whereas male reproductive success increased strongly. The is often referred to as Bateman's Gradient (that is, the statistical

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