Mongoose lizard

Mongoose dragons are giant lizard-like creatures domesticated from the Fire Nation's tropical jungles. These animals were used as mounts by Azula, Mai, and Ty Lee to chase the Avatar.

Anatomy
The mongoose dragon is a cross between a mongoose and a basilisk lizard, only bigger. It is very similar to a plumed basilisk in its markings and raised chest, as well as a few plumed areas of skin above the head. These huge lizards are approximately fifteen to twenty feet long from snout to tail. They have bright yellow eyes and can be mounted for travel. The mongoose dragons are ridden similarly to horse, except that mongoose dragons are much more versatile. Their quick, mongoose-like reflexes help them to dodge just about any attack, and their lizard-like abilities enable them to quickly crawl over just about any obstacle, even on walls and on top of water. Riding this animal requires some habituation, especially when it stands on its hind legs.

Connection
This enormous reptile most closely resembles the green plumed basilisk lizard. Its markings and raised crests are very similar to those on its giant Avatar counterpart. The green plumed basilisk also has the ability to run short distances on top of water.