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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.

Original publication

DOI

10.1016/j.cub.2007.07.027

Type

Journal article

Journal

Curr Biol

Publication Date

18/09/2007

Volume

17

Pages

R801 - R804

Keywords

Female, Fertility, Finland, Humans, Male, Sex Factors, Sex Ratio, Twins, Dizygotic