Viper bat

The Viper Bat is a small flying winged serpent found in the Earth Kingdom. Though not nocturnal, Viper Bats typically avoid strong light, and are most comfortable in dark damp areas, making caves their most preferred habitat. Often living in large colonies, they are known to be easily aggravated and ill-tempered. Despite their naturally aggressive temperament, domesticated Viper Bats are known to exist. Viper Bats, though not seen or mentioned in the Avatar: The Last Airbender series, feature in the Avatar comic, [[Avatar_Comics#Divided_We_Fall|Divided We Fall], released by Nickelodeon, and are thus considered to be canon.

Anatomy
The Viper Bat primarily resembles a rattlesnake in corpus, with the only exceptions of facial details and wings. They grow to be 1m-1.5m in length and have a wingspan 50cm-1m. Though their wings give them great speed and agility and their fangs, a penetrating bite, it is unknown whether or not they are venomous, or what damage they are capable of. Viper Bats bear distinctive dull red markings which run the length of their back, and have a softer sand coloured underbelly. Their tail ends in a crotalus or rattle which is of similar colour to the belly. Though the mouth and eyes resemble that of a serpent, the ears and nose are more similar to that of a bat. The bone structure of the head itself is a