Yes, as you can see in Don't Spok the Afflicted (the spoof comic I made back when I were just a lad and James T Kirk had yet to fashion a make-shift hairpiece out of a passing tribble), there were other fluffy things in the original Star Trek universe.

Of course, we're not talking just any old rabbit. The one featured in the latest two pages to be posted online was up and talking long before the term "anthropomorphic" had passed into common usage here in webland!