Modify thy ejaculate to determine the sex of your offspring
Thursday, March 1, 2012 - 09:30
in Biology & Nature
Some animal and human populations were shown to shift their birth sex ratio from the expected unity. Using fluorescence in situ hybridisation, scientists now show that males in a captive endangered pygmy hippopotamus (Choeropsis liberiensis) population may be able to adjust the ratio of X- and Y-chromosome bearing spermatozoa in their ejaculates, in favor of producing more female offspring.