Snake
Due to recent accidents, the goblin cartels have prohibited anyone from bringing snakes on a zeppelin.
This NPC can be found in
Feralas (40), Dustwallow Marsh (40), Zangarmarsh (36), Westfall (27), Sholazar Basin (13), Zul'Drak (13), Terokkar Forest (9), Loch Modan (5), Eversong Woods (5), Howling Fjord (2), Ghostlands (2), Silverpine Forest.