I'm guessing by your genes.
No human "discovered" curly or straight hair. It is in our genes and is how God made us.
75% chance of having straight hair and 25 % chance having curly Alleles Curly (woman) Curly Straight Straight Straight (guy) Straight Straight Curly
Human's hair texture is controlled by genes. If a parent has curly hair the likelihood that their offspring will have it is very great.
If you have straight hair of curly hair. I think straight haris is dominant.
No, curly hair is dominant
Straight is best
Does dakota like with straight hair or curly hair
do yorkies have straight or curly hair
no you could straight them even they are curly but i want them curly.
She has naturally curly hair.
danny has curly hair (:
curly