Frog
This NPC can be found in Elwynn Forest (343), Zangarmarsh (257), Westfall (175), Duskwood (124), The Barrens (68), Loch Modan (54), Darnassus (48), Desolace (46), Teldrassil (42), The Lost Isles (41), Maraudon (23), Zul'Gurub (17), Gundrak (16), Nagrand (15), Swamp of Sorrows (14), Ghostlands (12), Eversong Woods (10), Coilfang: The Slave Pens (6), Coilfang: The Steamvault (6), Silvermoon City (4), Dire Maul (3), Hellfire Peninsula (3), Well of Eternity (3) and Southern Barrens (1).