Individual mares bias investment in sons and daughters in relation to their condition.

@article{Cameron2000IndividualMB,
  title={Individual mares bias investment in sons and daughters in relation to their condition.},
  author={Cameron and Linklater},
  journal={Animal behaviour},
  year={2000},
  volume={60 3},
  pages={359-367}
}
The Trivers-Willard hypothesis (TWH) predicts that a mother will treat a son or daughter differently depending on her ability to invest and the impact of her investment on offspring reproductive success. Although many studies have investigated the hypothesis, few have definitively supported or refuted it because of confounding factors or an inappropriate level of analysis. We studied maternal investment in sons and daughters in feral horses, Equus caballus, which meet the assumptions of the TWH… CONTINUE READING
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