I have come across patches of bear hair twice in the mountains. Each time I found a dead bear.
The hair struck me as if there was a terrible fight that had occurred. One was a smaller bear that I am showing a picture of and the other was a very large bear. I always wondered what killed them. The smaller one could have been a variety of animals I guess, but the large bear I assume took another large bear to kill it. (There was hair all around in clumps)