Thats Betty Chu, she lives near me in California. She wins first prize at angora shows and is known to have impeccably groomed rabbits so I'm sure they have no mats. Having said that, if she sells any I can imagine that the rabbits can suffer with less enthusiastic owners who don't groom them well or cut down the fur. Angoras are naturally like that as Tamsin said, they're from the arctic originally before being taken by Turks I believe, more than a thousand years ago, but I'm sure the original ones taken from the wild were bred to be hairier over the centuries.