Complex sentence: Some Fauves are born with black in the coat, this may or may not go with maturity, it is less common to see them with white patches but when they do occur it is generally confined to the chest and top of the head.
Split into simpler sentences: Some Fauves are born with black in the coat; this may or may not go with maturity. It is less common to see them with white patches but when they do occur it is generally confined to the chest and top of the head.