One significant change during adolescence is a rapid growth rate (growth spurt); during this period, you will attain about of your adult height, your bones will grow significantly, and you will gain weight (about of your adult ideal weight). Your lean muscle mass and fat stores will also increase during this stage.

The shedding of the animal does not hurt them. Most of the times it feels better after it gets off. For sheep most people shave the sheets skin off, it looks like it may hurt the sheep but after the sheep is thankful all of that extra weight comes off. Also it is beneficial for us, humans to because most people like to collect the sheddings. Some people think it is useful. Hope this helps!!