Virgin Births: Here Is Why Males Are Still Not Irrelevant
Friday, April 17, 2015 - 12:20
in Biology & Nature
Evolution has endowed females of certain species of amphibians, reptiles and fish with the ability to clone themselves and perpetuate offspring without males. It has even happened more recently but these virgin births don't mean males are unneeded. Fertilization is still ensuring the survival of the maximum number of healthy offspring.A species can increase its numbers faster in harsh environments when its females do not have to find worthy males and scientists have speculated that this ability arose independently in certain species, either due to conflict between the sexes or to ensure survival when mates were scarce. Many of these species now consist entirely of females. read more