2 Popular Theories of Colour in Animals

The adaptation of the external colouring of animals to their conditions of life has long been recognised, and has been imputed¹ either to an originally created specific peculiarity², or to the direct action of climate, soil, or food. Where the former explanation has been accepted, it has completely checked inquiry³, since we could never get any further than the fact of the adaptation. There was nothing more to be known about the matter. The second explanation was soon found to be quite inadequate⁴ to deal with all the varied⁵ phases of the ph?nomena, and to be contradicted by many well-known facts. For example, wild rabbits are always of grey or brown tints⁶ well suited for concealment⁸ among grass and fern. But when these rabbits are domesticated⁹, without any change of climate or food, they vary into white or black, and these varieties may be multiplied to any extent, forming white or black races. Exactly the same thing has occurred with pigeons; and in the case of rats and mice, the white variety has not been shown to be at all dependent on alteration¹⁰ of climate, food, or other external conditions. In many cases the wings of an insect not only assume the exact tint⁷ of the bark or leaf it is accustomed to rest on, but the form and veining¹¹ of the leaf or the exact rugosity of the bark is imitated; and these detailed¹² modifications¹³ cannot be reasonably imputed to climate or to food, since in many cases the species does not feed on the substance it resembles, and when it does, no reasonable connexion can be shown to exist between the supposed cause and the effect produced. It was reserved for the theory of Natural Selection to solve all these problems, and many others which were not at first supposed to be directly connected with them. To make these latter intelligible¹⁴, it will be necessary to give a sketch¹⁵ of the whole series of ph?nomena which may be classed under the head of useful or protective resemblances.

1 imputed   

v.把（错误等）归咎于( impute的过去式和过去分词 )

参考例句：

• They imputed the accident to the driver's carelessness. 他们把这次车祸归咎于司机的疏忽。 来自《现代英汉综合大词典》
• He imputed the failure of his marriage to his wife's shortcomings. 他把婚姻的失败归咎于妻子的缺点。 来自辞典例句

2 peculiarity   

n.独特性，特色；特殊的东西；怪癖

参考例句：

• Each country has its own peculiarity.每个国家都有自己的独特之处。
• The peculiarity of this shop is its day and nigth service.这家商店的特点是昼夜服务。

3 inquiry   

n.打听，询问，调查，查问

参考例句：

• Many parents have been pressing for an inquiry into the problem.许多家长迫切要求调查这个问题。
• The field of inquiry has narrowed down to five persons.调查的范围已经缩小到只剩5个人了。

4 inadequate   

adj.(for,to)不充足的，不适当的

参考例句：

• The supply is inadequate to meet the demand.供不应求。
• She was inadequate to the demands that were made on her.她还无力满足对她提出的各项要求。

5 varied   

adj.多样的，多变化的

参考例句：

• The forms of art are many and varied.艺术的形式是多种多样的。
• The hotel has a varied programme of nightly entertainment.宾馆有各种晚间娱乐活动。

6 tints   

色彩( tint的名词复数 )； 带白的颜色； （淡色）染发剂； 痕迹

参考例句：

• leaves with red and gold autumn tints 金秋时节略呈红黄色的树叶
• The whole countryside glowed with autumn tints. 乡间处处呈现出灿烂的秋色。

7 tint   

n.淡色，浅色；染发剂；vt.着以淡淡的颜色

参考例句：

• You can't get up that naturalness and artless rosy tint in after days.你今后不再会有这种自然和朴实无华的红润脸色。
• She gave me instructions on how to apply the tint.她告诉我如何使用染发剂。

8 concealment   

n.隐藏, 掩盖，隐瞒

参考例句：

• the concealment of crime 对罪行的隐瞒
• Stay in concealment until the danger has passed. 把自己藏起来，待危险过去后再出来。

9 domesticated   

adj.喜欢家庭生活的；（指动物）被驯养了的v.驯化( domesticate的过去式和过去分词 )

参考例句：

• He is thoroughly domesticated and cooks a delicious chicken casserole. 他精于家务，烹制的砂锅炖小鸡非常可口。 来自《简明英汉词典》
• The donkey is a domesticated form of the African wild ass. 驴是非洲野驴的一种已驯化的品种。 来自《简明英汉词典》

10 alteration   

n.变更，改变；蚀变

参考例句：

• The shirt needs alteration.这件衬衣需要改一改。
• He easily perceived there was an alteration in my countenance.他立刻看出我的脸色和往常有些不同。

11 veining   

n.脉络分布；矿脉

参考例句：

• Art is a mirror reflects the era veining of the current society.艺术是社会的镜子，反映出当今社会的时代脉络。
• It retraces the four periods of our culture industry to make clear its development veining.通过对我国文化产业发展四个阶段的回顾，以期厘清其发展脉络。

12 detailed   

adj.详细的，详尽的，极注意细节的，完全的

参考例句：

• He had made a detailed study of the terrain.他对地形作了缜密的研究。
• A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。

13 modifications   

n.缓和( modification的名词复数 )；限制；更改；改变

参考例句：

• The engine was pulled apart for modifications and then reassembled. 发动机被拆开改型，然后再组装起来。 来自《简明英汉词典》
• The original plan had undergone fairly extensive modifications. 原计划已经作了相当大的修改。 来自《简明英汉词典》

14 intelligible   

adj.可理解的，明白易懂的，清楚的

参考例句：

• This report would be intelligible only to an expert in computing.只有计算机运算专家才能看懂这份报告。
• His argument was barely intelligible.他的论点不易理解。

15 sketch   

n.草图；梗概；素描；v.素描；概述

参考例句：

• My sister often goes into the country to sketch. 我姐姐常到乡间去写生。
• I will send you a slight sketch of the house.我将给你寄去房屋的草图。