system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why do butterflies and moths have such large wings relative to their body size compared to other insects?
gpt
Big wings means slower flapping to achieve flight - more surface area to push against the air. This decreases maneuverability but gives them more ability to glide/soar (fly without flapping). This makes sense for some butterflies as they're migratory. Also some large sea birds use this same strategy to soar for long distances.