The answer to 'what is a stink bug' is that a stink bug is a type of insect known for its distinctive shield-shaped body and its ability to release a foul-smelling odor when threatened or disturbed. Stink bugs are typically brown or green in color and range in size from about 1/2 inch to 3/4 inch long. They are common pests that can invade homes and gardens, feeding on a variety of plants and crops.
Stink bugs get their name from the pungent, chemical-like odor they release from special glands when they feel threatened. This odor is a defense mechanism that can be unpleasant for humans and can also attract other stink bugs. While the odor is not harmful, it can be difficult to remove from surfaces or fabrics if a stink bug is crushed or disturbed.