Add Yahoo as a preferred source to see more of our stories on Google. Male Greater-sage grouse (sage hen) (Centrocercus urophasianus) calls for the ladies from his snow-covered sagebrush lek with his ...

Males of some hummingbird species may have evolved to be smaller than their female counterparts because it allows them to put on more impressive courtship displays. Sexual dimorphism – where the sexes ...

Love songs, dinner and maybe even a new home. Economists predict that U.S. consumers will spend nearly $26 billion on Valentine’s Day gifts this season. But high in the sky and nestled in between the ...

Male bowerbirds have long been known as some of nature's most creative romantics. To attract a mate, they spend weeks or even months building elaborate structures known as bowers and decorating them ...

Finding a mate in the animal kingdom is not easy. It is often a competitive and dramatic process that requires substantial effort. In many species, males go to extraordinary lengths just for a chance ...