Scientists rethink why giant insects once ruled the skies, finding oxygen may not explain their size or disappearance.

When describing a fly, many people think of the ubiquitous house fly (Musca domestica); whereas, some biologists might envision the fruit fly (Drosophila melanogaster). Both are good examples of ...

How did insect wings originate? This is a question that represents an unsolved mystery of insect evolution. Despite many years of research, it is still not entirely clear from which body structure ...