Using a combination of field observations and laboratory manipulations, Langkilde and Swierk designed experiments to determine whether male lizards preferred the more -
masculine bearded ladies or their more - feminine sisters.
«However, whereas in human females the
masculine characteristics are less common within the population, in fence lizards, we see the opposite pattern: About three quarters of the females are so - called «
bearded ladies,» making masculinized females much more common than their counterparts with little or no blue ornamentation.»