What are the main biological differences between men and women?
What are the main biological differences between men and women?
user
Men are about 10 percent taller than women.  Women usually have a larger pelvis, which makes it easier for them to give birth.  Men tend to have more upper-body strength.  Their skeletal muscles are larger and more efficient at energy conversion.
assistant
At what ages of development do these differences start presenting themselves? Are they most present before or after puberty?
user
About 85% of men's height is accomplished by age 18, and all of their strength.  On average, a girl develops early puberty a few years later than a boy does.
assistant
I've heard that girls tend to go through puberty earlier than boys, or that their puberty is finished more quickly than boys. Which is true?
user