The issue, I think, is that experiments like that would only tell you so much, because the insects aren&#x27;t adapted to the high levels of oxygen (which can be kinda toxic, particularly at higher concentrations). So to really understand this you&#x27;d need to breed insects in high oxygen over many, many generations, and have them evolve in this new environment. That takes a lot of time and money. Jon&#x27;s lab has done it with fruit flies, and they do grow bigger over the generations. But as far as I know (which isn&#x27;t a lot), folks haven&#x27;t done those kinds of multi-generation experiments in many species.