Sex ratios: human twins and fraternal effects.
Historical data from Finnish populations reveals that, for females, exposure to a male twin in the womb may have significant, life-long, effects on subsequent fitness, with profound implications for the evolution of sex ratios and brood size.
| Main Authors: | , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
2007
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| 总结: | Historical data from Finnish populations reveals that, for females, exposure to a male twin in the womb may have significant, life-long, effects on subsequent fitness, with profound implications for the evolution of sex ratios and brood size. |
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