<a href=showthread.php?s=&postid=12902037#post12902037 target=_blank>Originally posted</a> by philter4
They actually don't change sex back once they have become male, only the color changes. This is a defense against being attacked by a more dominant male. All angels that have been studied to date are born female and when old enough and dominant change to a male, but never the reverse. They can however change their color pattern to mimic a female and avoid confrontation with other males.