Thunder Lizard.
A thunder lizard is a heavyset, large lizard that is the distant relative of the kodo.Template:Cite They are aggressive beasts that prefer canyons and plains. When in combat, they shoot lightning from their mouth at distance and dole out harsh headbutts at close range. Thunder lizards come in a variety of colors, including blue, pink, and gray, and live in Durotar, The Barrens, the Stonetalon Mountains, and Desolace.
Fighting thunder lizards
Attacks which interrupt the spellcasting of NPCs such as the rogue's 
[Kick], the shaman's 
[Earth Shock], and the warrior's 
[Shield Bash] are also effective against these lizards. When you see the lightning building up in its mouth, hit it with the counter to casting used by your class and you won't have to worry about getting hit by any lightning bolts... you'll only have to worry about being trampled, gored, or crushed by a huge and irate reptile.
Thunder Lizards are hostile, whereas kodos are neutral, and will not aggro unless attacked.
WarCraft III
In WarCraft III, thunder lizards came in a variety of forms, including storm wyrms and lightning lizards. Rather than shooting lightning from their horns, they shot it from their mouths. The salamanders and thunder lizards looked very similar, as one or the other was a simple reskin of the first.
Thunder Ridge
Thunder Ridge holds a massive amount of thunder lizards, and have already appeared in The Frozen Throne bonus campaign (starring Rexxar). In Warcraft III, Thunder Ridge thunder lizards were green, but in World of Warcraft they are red-skinned.
Stegodon
"Spikes" in the back of thunder lizards are similar to Stegodon ones; but where the Stegodon spikes probably served to help regulate the body temperature, the use of the thunders lizard ones are unknown. They may be used to channel electricity.
Notable Lightning Lizards
Types of Thunder Lizard
- Thunder lizard
- Gargantuan thunder lizardTemplate:Cite
Related Species
Trivia
In Cycle of Hatred, Aegwynn said that the word "kodo" referred also to thunder lizards. However, the two creatures are clearly not the same species and this is probably a retcon.