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. 2017 May 3;1(1):16–25. doi: 10.1002/evl3.2

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© 2017 The Author(s). Evolution Letters published by Wiley Periodicals, Inc. on behalf of Society for the Study of Evolution (SSE) and European Society for Evolutionary Biology (ESEB).

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Proportion of offspring sired by males from aged‐ or fresh‐sperm group in each of the (n = 30) families. Numbers at top indicate the number of offspring per brood.