Same-Sex Behavior Evolved in Many Mammals to Reduce Conflict, Study Suggests But the researchers cautioned that the work could not shed much light on sexual orientation in humans. Author: CARL ZIMMER Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)