Revisiting a sample of U.S. billionaires: how sample selection and timing of maternal condition influence findings on the Trivers-Willard effect.
Based on evolutionary theory, Trivers & Willard (TW) predicted the existence of mechanisms that lead parents with high levels of resources to bias offspring sex composition to favor sons and parents with low levels of resources to favor daughters. This hypothesis has been tested in samples of we...
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| Format: | article |
| Language: | EN |
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Public Library of Science (PLoS)
2013
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| Subjects: | |
| Online Access: | https://doaj.org/article/d38e8d77bf434de6adb676c492958f0b |
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