描写一种动物的外形特点‘兔’[英文]

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The white rabbit, the popular name rabbit, is the mammalia rabbit shape item, the phytophagy vertebrate

The rabbit is one of China's Chinese zodiac, places fourth, in corresponding twelve Earthly Branches mao.

Rabbit shape item: Rabbit shape item is mammal's one item, some two branch Leporidae (hare and domestic rabbit) as well as Ochotonidae (mouse rabbit)

The rabbit eye color has the relations with theirs superficial knowledge color, the black rabbit's eye is a black, the ash rabbit's eye is pessimistic, the white rabbit's eye is transparent.Did that why we see the small white rabbit's eye is red? This is because in the white rabbit eye capillary (blood capillary) has reflected the outside light, the transparent eye appears red.

The sub-eye has red .Blue color, dark brown and so on each kind of Yan .Also about some rabbits two eye colors not one .Because perhaps the rabbit is travels by night moves .Therefore its eye can gather very many light, even if also can see the thing in the micro hidden place. Moreover, because rabbit's eye long in face two .Therefore its field of vision is broad, the thing looks very much clear to oneself around Some people said the rabbit links own back all to be able to look .It cannot distinguish the three-dimensional thing, also looks to the close at hand thing not clearly.The ash rabbit's eye is pessimistic.The small rabbit has each kind of color, their eye also has the dissimilar color.That is because in their body has one kind to be called the pigment the thing.Includes the ash pigment small rabbit, the wool and the eye is pessimistic; Including the melanin small rabbit, the wool and the eye are black.In the small white rabbit body does not contain the pigment, its eye is colorless, we saw red is the blood color, is not the eyeball color, therefore its eye was naturally red.

Snake is a kind of animal whose body temperature changes with temperature, because the snake itself has no perfect body temperature regulation mechanism to produce and maintain a constant body temperature.?

蛇是一种体温随气温而变的变温动物,因为蛇本身没有完善的体温调节机制来产生和维持恒定的体温。

Snakes are carnivorous animals. They eat many kinds of animals, from invertebrates to all kinds of vertebrates. It is distributed in all parts of the earth except the north and south poles.

蛇是肉食性动物,所吃的动物种类很多,从无脊椎动物到各类脊椎动物。分布于地球上除南北极以外的所有地方。

Snakes are a special group of organisms that have evolved over 130 million years and play an important role in maintaining ecological balance.

蛇是历经1.3亿年的漫长进化发展而成的一个特殊生物类群,对维护生态平衡有着重要作用。

扩展资料

蛇是爬行纲动物演化史中最迟出现的类群,最早的蛇化石出土于距今七千多万年的中生代白垩纪地层内。蛇和蜥蜴的亲缘关系密切,许多学者经过研究发现:较原始的细盲蛇科的蛇中,体鳞呈覆瓦状排列,腹鳞小而分化不明显;上颌骨、腭骨、翼骨等颅骨密接,方骨短,限制了蛇嘴的极度张开;下颌保留着冠状骨;有乌喙骨和腰带骨。

巨蜥科的分叉之舌,以及美洲鬣蜥科(Iguanidae)的椎骨结构和血红蛋白经蛋白酶水解所产生的肽类指纹图等,均与蛇相似。更有甚者的是蜥蜴目中不但具有四肢退化而呈蛇形的蛇蜥科、蚓蜥科的种类。

并且还能在不同类型的蜥蜴之间看到其肢体长度比例上逐渐缩短直至萎缩消失的过程。这些实例都无可争辩地证实了蛇是渊源于蜥蜴,并循着身体延长和丧失四肢演化而从蜥蜴主干上所分化出的一个分支。

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