Male ruffs have the ability to eliminate excess sex hormones from their bloodstream. We often associate high testosterone ...

A gene regulating testosterone in ruffs produces three male morphs with unique behaviors, offering insights into vertebrate ...

A single gene that regulates testosterone levels in a 'crazy' species of shore bird controls the development of three wildly different types of males, a new study has found. Ruffs have long fascinated ...

A single gene that regulates testosterone levels in a “crazy” species of shore bird controls the development of three wildly different types of males, an international study involving researchers at ...