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Figure 1 | Biology of Sex Differences

Figure 1

From: The evolution of sex differences in disease

Figure 1

Bateman gradients. For males, fitness (in terms of reproductive output) is a simple linear function of the number of matings (or investment made in reproduction). For females however, the function is one of diminishing returns as fitness reaches a limit, at least over the short term, at an intermediate number of matings.

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