Good distinction. Evolution is hard to talk about, I still often have to take a step back and try to reword things that I'm talking about. Somewhat obviously,

Good distinction. Evolution is hard to talk about, I still often have to take a step back and try to reword things that I'm talking about. Somewhat obviously, females that happen to produce a larger number of viable offspring will produce a larger number of viable offspring. That means over time, a lot of the new viable offspring will be coming from those females. Which means over time, a lot of the species will have similar genes to those females. Which means that if the females all share a common mutation, over time a lot of the species will have that mutation.