Why are some 12 year old girls taller than boys of the same age

In general, boys begin puberty between the ages of 10 and 13 years old and experience growth spur...

As such, girls tend to be taller than boys at the same age because they enter puberty sooner than...

They tend to grow most quickly between ages 12 and 15. The growth spurt of boys is, on average, a...

Kids tend to get taller at a pretty steady pace, growing about 2.5 inches (6 to 7 centimeters) ea...

First of all, no. They aren't all supposed to be taller. It's true that often girls have a growth...