No, the hair of the German Shepherd Dog is always harsh, thick and straight.
It is not a different breed, but a specific gene that causes long hair in German Shepherds. A German Shepherd with long hair is still of the German Shepherd Breed.
fur
Yeah, a Short haired German Shepherd. Or a Belgian Shepherd.
Lockiges Haar.
The wrinkles are normal and a German Shepherd sheds a lot. Brush him every day.
no, this isn't normal
No, It's naturally curly
She has curly hair is correct.
The absolute BEST for curls is DevaCurl No-Poo from DevaChan! It's made for curly hair and does not do what normal shampoos do. Normal shampoos lather and strip natural oils from your hair, making it frizzy and unmanageable most times.
Curly hair is hereditary. Children will get curly hair if they have parents with curly hair or if it runs in their families in grandparents.
This happens because of the dominant and recessive alleles. This means that if your dad had curly hair naturally, and your mother had straight hair you would have both alleles, but your mum's gene of the straight hair was recessive. It was dominated by the curly hair gene. Bullied away, if you prefer. It is totally normal, and often happens. However, that does not mean the curly hair gene always is dominant, it just means that your curly hair gene was. If you would prefer straight hair though, you can buy straighteners, and hair straightening products.
Colder climates help some.