Answer by Anouck at 7:31 PM on Dec. 9, 2009
Answer by shay1130 at 7:39 PM on Dec. 9, 2009
Because all mammal embryos start out female.
Answer by Anonymous at 7:39 PM on Dec. 9, 2009
The answer is that as embryos men and women have similar tissues and body parts. If anything the embryo follows a 'female template'. That is why nipples are present in both sexes. It is the effect of the genes, the Y chromosome and the hormone testosterone that brings about the changes and masculinises the embryo. Testosterone promotes the growth of the penis and testicles. Because nipples are there before this process begins the nipples stay!
Male Breasts Can Produce Milk and Get Breast Cancer
A certain level of the female hormone estrogen is present in all men. If, as a result of disease or a condition affecting hormones, breast tissue in men can grow and men can produce milk.
Learn something new everyday! LOL :o)
Answer by LoriKeet at 7:42 PM on Dec. 9, 2009
Answer by Anonymous at 8:17 PM on Dec. 9, 2009
Answer by ArmyWife112908 at 8:34 PM on Dec. 9, 2009
Answer by geminishadow79 at 8:36 PM on Dec. 9, 2009
Answer by HMHUTSON at 9:02 PM on Dec. 9, 2009
Answer by Anonymous at 9:25 PM on Dec. 9, 2009
Next question overall
Is there any low income or free christmas tree programs?