To protect themselves from much larger predators
The dwarf iris is threatened because of loss of habitat, and chemical spraying, the salting of roads, and off road vehicles.
by its spraying nozzle
The main differences come in the nature of the spraying mechanism. The most common involves the usual tube and hose mechanism that most people are familiar with.
As a ferret owner of 10 years i can testify that the scent's during increased adrenalin rushes have definite social meanings eg: excitement,fear,curiousity,anger,affection,panic,pain. But basicaly when you smell something you get an idea of what it tastes like well would want to eat something that smells putrid. Believe me it is absolutely foul and it lingers.
They spray a stinky fluid on the threatening force.
by flapping their ears or spraying themselves with water.
They are spraying things
Try spraying the latch mechanism liberally with WD-40, operate the door a few times than spray with a silicone spray
a spraying bottle
Usually caused by lack of use--try spraying mechanism liberally with WD-40 or similar product to free-up
By flapping their ears. PCHQuiz4Cash answer. Or spraying dust or water on themselves.
By biting, stinging, spraying formic acid, and some ant have poison sac on both sides of their abdomen which serves as suicide bomb.