Trenches are built into the base to collect noxious fluids that could leak out and contaminate water.
While my sister's grasshopper merely spewed some noxious fluid, mine chose to demonstrate the prodigious strength of his mandibles.
Like skunks and polecats, the weasel emits a noxious fluid from its anal glands when it feels threatened.
They raise and rustle wings when disturbed and may secrete a noxious fluid from the thoracic joint.
The most costly weapon - massive discharge of noxious fluid - is reserved for last when all other tactics have failed.
All species are protected by noxious fluids based on cyanide, and most have warning colouration, such as red with black spots.
Only a few small streams of noxious fluid appeared to be leaking onto the floor, so far.
