I want to know the answer to the following question:
What does Darwin say can explain diverse feature such as antlers on deer and bright feathers on certain male birds?
All the background I'm provided with is that "Darwin proposes sexual selection, driven by competition between males for mates, to explain sexually dimorphic features such as lion manes, deer antlers, peacock tails, bird songs, and the bright plumage of some male birds.". Is that enough to answer the question?