The other criteria would evolve to match what the females like. The feathers would stop evolving to the color that increased mating and would get adapted to sth else such as having camouflage(the color of their ecosystem to stay hidden from predators).
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Hey, just a heads up there’s no picture ^*
<span>The human mouth is full of bacteria because the mouth is a warm, wet environment, and these are perfect conditions for bacteria to reproduce. It's a perfect stable environment.</span><span />
B. nucleus which is the brain of a cell