system
Given the following post, respond as if you're commenting on Reddit:
human
How do ant traits non queen members evolve?

For example, how did worker ants get larger mandibles if they themselves cannot reproduce?
gpt
The mutation would be with the queen, and would be passed onto her daughters. A colony whose queen had a beneficial mutation would be more likely to thrive and out-compete other colonies, and thus more likely to pass the mutation on.