Typically, armadillos are not aggressive animals. In fact, they are usually quite shy, docile and non-aggressive in nature. When these creatures are alarmed they are capable of achieving astonishing speed and agility and are also masters when it comes to dodging. An armadillo’s reaction to danger is usually to run or burrow rapidly into the ground where it then wedges itself into a hold using its back and claws. If pursued, it changes from its normal shifting shuffling gait to a scuttle, and then moves on to a fast gallop with remarkable speed. These creatures can even outrun people over short distances. If caught, they have been known to fight using their claws in order to help defend themselves, however they are not known to bite as they do not have teeth in the front part of their mouths.
While these creatures are typically very calm and shy in nature, under the right circumstances they have been known to get aggressive from time to time. Since they are naturally wild animals, trying to captivate them can sometimes be difficult and could be a potential harm to the person trying to keep the armadillo as a pet as it may try to retaliate.
Although animals have tendencies and certain behavioral traits that they may exhibit more than others, one can never be too sure when something unexpected could occur. There is a first time for everything, and there is always the chance that an armadillo could in fact turn aggressive if it feels threatened in some way, shape or form.