Thanks for the replies. I'm asking because a druid character in player party has an animal companion, and assumes that tricks given under the "animal friendship" spell are "free" tricks, and that any more would require the Handle Animal skill. I have the impression that 6 skills are the maximum for any animal with two intelligence, and that absolutely no more can be taught to it.
Can anyone back up my side or his on this? Was the SRD quote given in reference to the Animal Companion spell, or in the Handle Animal entry? It makes sense to me that an animal could learn far more than 6 tricks (can't dogs?) and I don't think it would hurt the game, but I would still like to know the "official" ruling is.
-Gramps