Related topics: women

Researchers discover new sex hormone

When University of Ottawa biologists Kim Mitchell and Vance Trudeau began studying the effects of gene mutations in zebrafish, they uncovered new functions that regulate how males and females interact while mating. We sat ...

Bird's rare solid wing-bone developed for wooing (w/ Video)

(Phys.org) -- Males of all species have been known to go to extremes to woo a female, but few have gone so far as the male club-winged manakin, a sparrow-sized bird from the forests of Ecuador and Colombia.

Sexual healing? Not likely

(PhysOrg.com) -- A new study shows the production of sperm is more biologically taxing than previously thought, and expending energy on it has significant health implications.