Question: What does Darwin say can explain diverse feature such as antlers on deer and bright feathers on certain male birds?
Sentence: Natural selection was expected to work very slowly in forming new species, but given the effectiveness of artificial selection, he could "see no limit to the amount of change, to the beauty and infinite complexity of the coadaptations between all organic beings, one with another and with their physical conditions of life, which may be effected in the long course of time by nature's power of selection".
Answer in sentence: no