Battle Pets by Zone

Pet Battle: [1-2] Elwynn Forest; [1-2] Tirisfal Glades; [3-4] Westfall; [3-6] Bloodmyst Isle; [4-6] Redridge Mountains; [5-7] Duskwood; [6-7] Hillsbrad Foothills; [20-22] Howling Fjord

Pet Battle: [1-2] Mulgore; [1-3] Silvermoon City; [1-3] The Exodar; [3-4] Westfall; [5-7] Duskwood; [6-7] Wetlands; [12-13] Dustwallow Marsh; [20-21] Netherstorm; [22-23] Crystalsong Forest

Pet Battle: [1-2] Mulgore; [1-3] Thunder Bluff; [3-4] Northern Barrens; [3-4] Westfall; [7-8] Arathi Highlands; [9-10] Southern Barrens; [18-19] Nagrand (Outland); [25] Nagrand (Draenor)

Pet Battle: [1] Stormwind City; [1-2] Azuremyst Isle; [1-2] Tirisfal Glades; [1-2] Dun Morogh; [1-2] Teldrassil; [1-2] Mulgore; [1-2] Eversong Woods; [1-2] Elwynn Forest; [1-3] Silvermoon City; [3-4] Westfall; [3-6] Azshara; [3-6] Silverpine Forest; [3-6] Darkshore; [4-6] Ashenvale; [4-6] Redridge Mountains; [5-7] Duskwood; [5-7] Stonetalon Mountains; [6-7] Hillsbrad Foothills; [6-7] Wetlands; [10-11] Western Plaguelands; [11-12] Feralas; [15-16] Moonglade; [18-19] Nagrand (Outland); [18-20] Blade's Edge Mountains; [20-22] Howling Fjord; [22-23] Crystalsong Forest; [22-24] Mount Hyjal; [25] Highmountain; [25] Nagrand (Draenor)

Pet Battle: [3-4] Westfall; [3-6] Azshara; [20-22] Borean Tundra; [20-22] Howling Fjord; [23-24] Twilight Highlands; [25] Nagrand (Draenor)

Pet Battle: [1-2] Teldrassil; [1-2] Eversong Woods; [1-2] Elwynn Forest; [1-3] Darnassus; [3-4] Northern Barrens; [3-4] Westfall; [3-6] Loch Modan; [3-6] Ghostlands; [5-7] Duskwood; [7-8] Arathi Highlands; [7-9] Desolace; [9-10] Southern Barrens; [18-19] Zangarmarsh

Pet Battle: [1] Gilneas; [1-2] Eversong Woods; [1-2] Dun Morogh; [3-4] Westfall; [3-6] Loch Modan; [3-6] Ghostlands; [3-6] Silverpine Forest; [7-9] Northern Stranglethorn; [11-12] Feralas; [12-13] Dustwallow Marsh; [18-19] Zangarmarsh; [18-19] Terokkar Forest; [18-19] Nagrand (Outland); [20-22] Howling Fjord; [21-22] Sholazar Basin; [22-23] Zul'Drak; [23-24] Tol Barad; [25] Nagrand (Draenor)

Pet Battle: [1] Gilneas; [1] Stormwind City; [1-2] Azuremyst Isle; [1-2] Elwynn Forest; [1-2] Dun Morogh; [1-2] Teldrassil; [3-4] Westfall; [3-6] Azshara; [3-6] Silverpine Forest; [3-6] Loch Modan; [3-6] Darkshore; [4-6] Ashenvale; [5-7] Duskwood; [6-7] Wetlands; [6-7] Hillsbrad Foothills; [10-11] Western Plaguelands; [11-12] Feralas; [12-13] Dustwallow Marsh; [15-16] Moonglade; [18-19] Terokkar Forest; [18-19] Nagrand (Outland); [18-20] Blade's Edge Mountains; [20-22] Howling Fjord; [21-22] Sholazar Basin; [22-23] Crystalsong Forest; [22-24] Mount Hyjal; [23-24] Twilight Highlands; [23-24] Tol Barad Peninsula; [25] Val'sharah; [25] Highmountain; [25] Nagrand (Draenor)

Pet Battle: [3-4] Westfall