‘It is not the strong, nor the intelligent who survive,’ wrote Charles Darwin, ‘but those who are quickest to adapt’.
Take your average peacock. Why has he evolved to make such extravagant displays when all it seems to do is to make him more conspicuous and hence more vulnerable to predators?
While that’s true, it ignores the perspective of the peahen. A peacock’s display is the means through which males compete with each other for female attention.