The role of mating effort and co-residence history in step-grandparental investment by Jenni E. Pettay, David A. Coall, Mirkka Danielsbacka, Antti O. Tanskanen

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Reply to: Maternal capacity, twinning and fertility: the last birth matters by Alexandre Courtiol, Colin Vullioud, François Rousset, Erik Postma, Samuli Helle, Virpi Lummaa, Ritva Kylli, Jenni E. Pettay, Eivin Røskaft, Gine R. Skjærvø, Charlotte Störmer, Eckart Voland, Dominique Waldvogel, Ian J. Rickard

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Mothers with higher twinning propensity had lower fertility in pre-industrial Europe by Ian J. Rickard, Colin Vullioud, François Rousset, Erik Postma, Samuli Helle, Virpi Lummaa, Ritva Kylli, Jenni E. Pettay, Eivin Røskaft, Gine R. Skjærvø, Charlotte Störmer, Eckart Voland, Dominique Waldvogel, Alexandre Courtiol

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