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 Simon Fraser University has found. 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 Simon Fraser University has found. Plants & Animals Molecular & Computational biology Phys.org – latest science and technology news stories