Why are girls shorter than guys?

Answer 1

I'm not sure what you mean by this question. Typically, girls are shorter than guys, among most primate species.

Girls start puberty before boys therefore at first are taller than boys,but in the end after boys start puberty boys are generally taller.

Answer 2

Well, it normally depends on the person. If you in middle school maybe, its puberty, girls are normally taller.