system
Given the following post, respond as if you're commenting on Reddit:
human
[Starship Troopers] How did the plasma bugs evolve? Half an eye will detect light, half a wing will help you glide, but what benefit is there to shooting plasma/spores into the sky at half of escape velocity?
gpt
The brain bugs have directed the evolution of the various castes by selective breeding and genetic manipulation for tens of thousands of years.  The original warrior bugs probably spit something like superheated secretions by squirting different chemicals from glands to create an exothermic reaction.  Or perhaps they used caustic fluids.

Through time, as the brain bugs mastered the sciences, they incorporated their discoveries into new breeds, which were based on the older types.  They are tool users as much as Man, but their tools are their drones and workers and soldiers.