Cell phones have become a vital part of everyday life. However, the health risks associated with their usage are often overlooked. Recently, evidence from several studies supports a growing claim that cell phone usage may have a detrimental effect on sperm parameters leading to decreased male fertility. Nonetheless, other studies showed no conclusive link between male infertility and cell phone...

ent sword as a control. Because swordlessness is the ancestral state of the Xiphophorus clade, Basolo argues that the results of her experiment indicate that female preference for swords predates the evolution of the sword and concludes that coevolutionary models of sexual selection are inadequate. Basolo provides no direct evidence in support of a preexisting female sensory bias, but rejects t...

Oh, oh, oh? no? Though much has been said about men?s versus women?s ability to orgasm, there seems to be a growing consensus that there are no major biological differences between their respective orgasms. For the majority of people, orgasms are characterized by a contraction of pelvic floor muscles, intense pleasurable sensation, release of endorphins and hormones, and for some, the release o...

Oh, oh, oh? no? Though much has been said about men?s versus women?s ability to orgasm, there seems to be a growing consensus that there are no major biological differences between their respective orgasms. For the majority of people, orgasms are characterized by a contraction of pelvic floor muscles, intense pleasurable sensation, release of endorphins and hormones, and for some, the release o...

Oh, oh, oh? no? Though much has been said about men?s versus women?s ability to orgasm, there seems to be a growing consensus that there are no major biological differences between their respective orgasms. For the majority of people, orgasms are characterized by a contraction of pelvic floor muscles, intense pleasurable sensation, release of endorphins and hormones, and for some, the release o...

Oh, oh, oh? no? Though much has been said about men?s versus women?s ability to orgasm, there seems to be a growing consensus that there are no major biological differences between their respective orgasms. For the majority of people, orgasms are characterized by a contraction of pelvic floor muscles, intense pleasurable sensation, release of endorphins and hormones, and for some, the release o...