Hair is simoply a protein filament that grows in the skull
I heard about that in school. Very interesting,.
it is one of the major charastics of a mammal
Really? I guess all mammals have it.
yes, the most interesting and common interests about hair is growth, hair types, and hair care.
My sister-in-law is obsessed with hair. She is always complaining her hair grows to slow.
I understand that, attitudes about hair varies across cultures and historical periods, and age too
Well, she is pretty young so hopefully she grows out of it!
The cortex of hair contain melanin, just like skin to determine its color
Except when people use hair dye!