TY - JOUR T1 - Polyspermy in birds: sperm numbers and embryo survival. JO - Proceedings of the Royal Society B: Biological Sciences UR - https://eprints.whiterose.ac.uk/id/eprint/91830 UR - http://dx.doi.org/10.1098/rspb.2015.1682 PY - 2015/11/07 AU - Hemmings N AU - Birkhead TR ED - DO - DOI: 10.1098/rspb.2015.1682 PB - The Royal Society VL - 282 IS - 1818 Y2 - 2025/11/18 ER -