| 1. | Male pheromones convey more detailed information about age, reproductive fitness, and ancestry.
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| 2. | In nature, males and females usually differ in reproductive fitness optima.
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| 3. | In small groups no male was dominant and individuals displayed similar reproductive fitness.
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| 4. | "Social behavior contributes to both individual survival and reproductive fitness, " she said.
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| 5. | There may also be a range of secondary organs that increase reproductive fitness.
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| 6. | Beauty is a relatively universal concept based around reproductive fitness.
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| 7. | Thus, female workers can maximize their reproductive fitness at the expense of the colony.
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| 8. | These gains include protection from predation and increased reproductive fitness.
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| 9. | The feelings associated with romantic love function to ensure the greater reproductive fitness of individuals.
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| 10. | Thus, the queen and her worker daughters would compete for reproduction to maximize their own reproductive fitness.
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