What men can do (other than fertilize female egg cells) women can do, provided they are not too occupied with doing what only they can do. (religion-online.org)
«By modelling a system where females can mate multiply to enhance fertility, and males compete for fertilization of female eggs, researchers show that male choosiness readily evolves. (sciencedaily.com)
«Before we get too excited about this being a new form of infertility treatment, these cells can not as yet be made into functioning sperm, so we have no idea if they can pass «the acid test» — the ability to fertilise female eggs as is achieved with donor sperm in IVF treatment,» says Malcolm Alison of the London School of Medicine and Dentistry in the UK. (newscientist.com)