(1) Mimicry may occasionally arise in one sex because the differences which distinguish it from the other sex happen to be such as to afford a starting-point for the resemblance. Here the male is at no disadvantage as compared with the female, and the rarity of mimicry in the male alone (e.g. Cethosia) is evidence that the great predominance of female mimicry is not to be thus explained.英文原著 · 《Darwin and Modern Science》
A seemingly irreconcilable contradiction to the mimicry theory is presented in the following cases, which were known to Bates, who, however, never succeeded in bringing them into line with the principle of mimicry.英文原著 · 《Darwin and Modern Science》
Usually the nighthawks hunt in little companies in the most sociable fashion. Late in the summer they seem to be almost gregarious. They fly in the early morning or late afternoon with beak wide open, hawking for insects, but except when the moon is full they are not known to go a-hunting after sunset. During the heat of the day and at night they rest on limbs of trees, fence-rails, stone walls, lichen-covered rocks or old logs -- wherever Nature has provided suitable mimicry of their plumage to help conceal them.英文原著 · 《Bird Neighbors》
The brown creeper's plumage is one of Nature's most successful feats of mimicry -- an exact counterfeit in feathers of the brown-gray bark on which the bird lives. And the protective coloring is carried out in the nest carefully tucked under a piece of loosened bark in the very heart of the tree.英文原著 · 《Bird Neighbors》
"Fair enough--fair enough," Bud retorted with faint mimicry. "If I was all up in the air a few days ago, I seem to have lit on my feet, and that's good enough for me right now. We'll let 'er ride that way."英文原著 · 《Cabin Fever》
The strongest of all proofs of the theory, however, is afforded by cases of true "mimicry," those adaptations discovered by Bates in 1861, consisting in the imitation of one species by another, which becomes more and more like its model. The model is always a species that enjoys some special protection from enemies, whether because it is unpleasant to taste, or because it is in some way dangerous.英文原著 · 《Darwin and Modern Science》