So what exactly are bed bugs? To answer the awkward question, bed bugs are simply insects. But like all the millions of other insect species, bed bugs have their own identity. They would not be left behind in the identity department. Start from the scientific view. Bed bugs are scientifically labeled Cimex lectularius. They belong to the ever wide and diverse kingdom, or phylum as what can be more appropriate, called Insecta. Did you know that if ever there might come a time when the world will be annihilated, all creatures in planet Earth, including humans and animals, will be exterminated. All but one type of creatures will vanish by then.
You got it right. Insects, with their flexibility and resilience will be left to occupy the planet. Bed bugs are among them. That is why, exterminating them will a hard feat. How do they look like? When viewed from the top (by the way, you would not want to look at them at any other angle, for sure), bed bugs look like flattened creatures. They are so tiny, that one can hardly see and look at them, not unless they are aided by magnifying glasses or lenses. Bed bugs usually appear like tiny deep brown creatures. In other parts of the globe, like in Europe, bed bugs may appear differently---they may adopt white to creamy white color. When they are fed, or just came from a meal, bed bugs look like tiny bloated creatures with black or deep red little mass in their stomach area.