yue
Exponent
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Darwin recognized that this could occur in two different ways. In one form of sexual selection, members of one sex (usually the males) compete with one another for access to the other sex (usually the females). This form is called intrasexual selection since it focuses on interactions between individuals of one sex. Because competition typically occurs among males, it is in males that we see physical traits such as large size and horns and other elaborate weaponry, as well as fighting ability. Larger, more powerful males tend to win more fights, hold larger territories, and have access to more females.
Darwin also recognized a second form of sexual selection. In this variant, males (typically) do not fight with one another, but instead compete for the attention of the female with bright colors or advertisement displays. In this case, females choose their mates. This form of selection is called intersexual selection since it focuses on interactions between males and females. The peacock’s tail is thought to be the product of intersexual selection: its evolution has been driven by a female preference for ever-showier tails.
The rise of the pretty boy over the masc.
Darwin also recognized a second form of sexual selection. In this variant, males (typically) do not fight with one another, but instead compete for the attention of the female with bright colors or advertisement displays. In this case, females choose their mates. This form of selection is called intersexual selection since it focuses on interactions between males and females. The peacock’s tail is thought to be the product of intersexual selection: its evolution has been driven by a female preference for ever-showier tails.
The rise of the pretty boy over the masc.
