"Animal" language doesn't exist in D&D (that I remember). From what I understand, Animal language is actually equivalent to "Druidic" which has nothing to do with speaking to or understanding animals. As the language suggests, it is _only_ known by Druids (but in FK, for some reason, it was extended to Rangers).
Apparently there are currently no quests or set standard as to how one is to use this language nor any quest suggesting its proper usage. I've seen it spoken by PCs before and other times, only acted as understood by PCs.
So, I'm putting it to a vote as to how we think it should be handled (and properly roleplayed):
- 1: It is the understanding of each individual animal's nature and its body language. This would apply to any animal of 2 or less intelligence score (horses, dogs, etc.). The language should be understood, but not actually spoken.
- 2: This language should be considered an extraordinary ability shared by Druids and Rangers as part of their special training. It can be both understood and spoken.