Sons of common hippos and daughters of pygmy ones: sex ratio in hippos kept in the zoos

PLUHÁČEK, J. and STECK, B. Sons of common hippos and daughters of pygmy ones: sex ratio in hippos kept in the zoos. Živa, 2016, vol. 63(1), p. 43-45. ISSN .
Year2016
CathegoryOthers
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Abstract

We studied birth sex ratio in captive common and pygmy hippos. In both species the birth sex ratio differed from 1:1. In common hippos more sons than daughters were born whereas the opposite was found in pygmy hippos. Various factors affecting birth sex ratio were analysed and discussed.