Sex produces organisms different from the parent. There is a good chance that some of those offspring will thrive no matter what new conditions occur. Many organisms can reproduce both sexually and asexually. Humans for example can only reproduce sexually.
Miley Cyrus' Brother Trace Reportedly Impregnates Disney Star Brenda Song. Trace Cyrus, the rocker older brother of Miley Cyrus, is expecting a child with Disney actress Brenda Song, MTV News and other celebrity news sites reported Wednesday. It will be the first child for both Cyrus, 22, and Song, 23, who began dating in May 2010.
Robby Stewart. Robby Ray Stewart is a fictional character from the Disney Channel series Hannah Montana, portrayed by Billy Ray Cyrus. Robby is the single father of Jackson Stewart (Jason Earles) and Miley Stewart (Miley Cyrus). He appears in all episodes in seasons 1 and 2, is absent for 3 episodes in season 3, and is absent for 1 episode in season 4.