For example, with respect to skin color in Europe and Africa, Brace writes:To this day, skin color grades by imperceptible means from Europe southward around the eastern end of the Mediterranean and up the Nile into Africa.
Almital, daɣ semɣar n dumu n taɣissa daɣ Eroba d Afrikiya , Brace ilktab: Achal id, dumu n taɣissa iskatan isuj war n ila akayad daɣ achrut n Eroba wan emaynag edes n achrut wa alqiblat n Mediterrannée tolas ɣur Ejarew wan Nile daɣ Afrikiya