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