Girls hit puberty earlier than ever, and doctors aren't sure why
http://yourlife.usatoday.com/parenting-family/story/2011/04/Girls-hit-puberty-earlier-than-ever-and-doctors-arent-sure-why/45989054/1
"They first noticed something different when Laila was 3, and she began to produce the sort of body odor normally associated with adults. Three years later, she grew pubic hair. By age 7, Laila was developing breasts."
http://yourlife.usatoday.com/parenting-family/story/2011/04/Girls-hit-puberty-earlier-than-ever-and-doctors-arent-sure-why/45989054/1
"They first noticed something different when Laila was 3, and she began to produce the sort of body odor normally associated with adults. Three years later, she grew pubic hair. By age 7, Laila was developing breasts."