Swedish biologist Malte Andersson proved that it does,with an elegant experiment on the long - tailed widowbird of Africa In this species the make's tail in the breeding season is up to 19 inches long The tail of a female widowbird is generally about two and a half inches long successful males are "polygamous" acquiring up to six mates-- at the expense of her males who get none
1.being sexy
2.being successful
3.having many mates
4.having one tail