Insects
You can see the enormous diversity of insect shapes if you look at the photos below. The name "insect" comes from the Greek word "entomos" meaning "cut into sections", in reference to the insects body parts: the wasp is an excellent example of this. Although their appearance differs greatly from one species to another, insects belong to the same class because their bodies are always organized according to a similar pattern. Insect bodies are divided into three parts: head, thorax and abdomen.
Unlike vertebrates, they have no internal skeleton: their skeleton is external and the muscles and organs are attached beneath. Insects also have several jointed appendages such as legs, antennae, and feelers, arranged on their body. They pass through different stages during their life - egg, larva, chrysalis and then adult - and the growth process sometimes results in them changing their form completely and leading an existence that is totally different as they progress from larva to adult; a process that applies to various groups of insects, like the butterfly for example.
