Complex sentence: The general anatomy of a beetle is quite uniform and in general typical of insects, although there are several examples of novelty, such as adaptations in water beetles which trap air bubbles for use as gills while diving.
Split into simpler sentences: The general anatomy of a beetle is quite uniform and in general typical of insects, although there are several examples of novelty. Such innovations include adaptations in water beetles which trap air bubbles for use as gills while diving.