yeah.i think.but i'm remembering the domanda bella asks jacob in eclipse why his pelliccia is longer than the other wolves.his response is that he cut it short 'cause jared paul and sam all did that when the joined the pack.but if im right jacob lets it grow long then cuts it again in breaking dawn.
Yes it does. In New Moon he cropped his hair very short, because it was più conveinant. But (sorry don't know exactly which book) he let his hair grow longer, because he thought Bella liked it better when it was longer. And da the camping in Eclipse it was also longer. After that it was short again