question: What does Darwin say can explain diverse feature such as antlers on deer and bright feathers on certain male birds ?
answer: sexual selection , driven by competition between males for mates
turker_answer: Darwin says sexual selection , driven by competition between males for mates can explain diverse feature such as antlers on deer and bright feathers on certain male birds .
rule-based: Darwin says sexual selection , driven by competition between males for mates can explain diverse feature such as antlers on deer and bright feathers on certain male birds .