Weirdly enough, this strange example is not the exception, but the rule when dealing with insects. Insects are egg laying species. They lay eggs in one out of two ways. They can either lay it barely developed, or they can let it develop inside them before laying it. Either way the egg will someday develop into an insect which will repeat the process.
Insect generations are far shorter than humans.
And being cold blooded creatures, an insects death is hastened by the frost. So, as you can see, insects are the most common type of animal life on this Earth. Everywhere you turn they abound. In fact microscopic ones are on you now. Entomologists study these bugs, and it is their duty to classify them.