That's rude. That's not fur, it's my beard!

ケモナーとは、ケモノが好きな人の事である。ケモノ≠動物。
ちなみにケモノの厳密な定義などはケモノの項目やウィキペディアやpixiv大百科等にて。

A kemonner is a person who likes kemono. Kemono ≠ animals.
By the way, for a strict definition of kemono refer to some kemono-related resource, Wikipedia or Pixiv encyclopedia.

(source: http://dic.nicovideo.jp/a/ケモナー)
And http://ja.wikipedia.org/wiki/ケモノ redirects to http://ja.wikipedia.org/wiki/ファーリー・ファンダム, so kemono is the japanese term for furries.