爬行动物

这种爬行动物浑身是刺，几乎所有的捕食者都退避三舍。

The reptile 's prickly skin repels nearly all of its predators .

这种爬行动物的皮肤坚韧并带有鳞片。

The reptile 's skin is tough and scaly .

大多数爬行动物通过在陆地产卵进行繁殖。

Most reptiles reproduce by laying eggs on land .

这只小鸡长得很丑，看起来几乎像个爬行动物。

The chick is ugly and almost reptilian in its appearance .

所有爬行动物生长过程中都要蜕皮。

All reptiles have to slough their skin to grow

目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。

30 percent of reptiles , birds , and fish are currently threatened with extinction .

其他大部分化石来自剪嘴龙（嘴像鹦鹉的爬行动物）

Most of the other fossils come from rhynchosaurs ( parrot-beaked reptiles ) .

蛇和鳄鱼都是爬行动物

Snakes and crocodiles are both reptiles .

所以，你不必惊奇有人养了一只爬行动物作为宠物。

So you should not be surprised to see someone keep a reptile as a pet .

动物保护科学家的记录显示，自1970年来，哺乳动物、鸟类、两栖动物、爬行动物和鱼类的数量平均下降了68%。

Conservation scientists recorded an average 68 % fall in mammals , birds , amphibians2 , reptiles3 , and fish since 1970 .

DNA分子系统学在爬行动物中的应用

Application of DNA Molecule Systematics in Reptiles

从蛋白质水平、DNA水平对爬行动物分子系统学的研究及进展情况进行了综述。

The studies and progress of molecular systematics on protein and DNA molecular level in reptiles were reviewed .

末日城堡是一款传统的类rogue的地牢爬行动物游戏，充满泽黑暗的未来白日梦和许多特色。

Tower of doom is a traditional rogue-like dungeon crawler with a dark futuristic fantasy theme and many unique features .

“散开的晶体在岩石表面滑了一段时间就再也没有声音了”（H·G·威尔斯）。这个词还可以指爬行动物蜿蜒，滑行的动物。

" The detached crystals slithered down the rock face for a moment and then made no further sound "( H.G.Wells ) . The word can also suggest the sinuous , gliding motion of a reptile .

同时两种爬行动物胃肠胰系统5-HT细胞的分布型存在着种间差异。

On the other hand , some species-dependent discrepancies in distributional patterns of 5-HT cells in the GEP system are also detected between the two reptiles .

两种爬行动物消化道5-HT细胞的形态多样，从整个消化道看两者大体都有椭圆形、梭形、纺锤形、烧瓶形、楔形、锥形细胞。

5-HT cells in the digestive tract of the two reptiles assumed various shapes : oval , spindle , shuttle , pyramid , flask , and wedge .

同时研究发现爬行动物MHCⅡ类B基因存在着跨种多态性现象，这在爬行动物中尚属首次，有助于MHC基因跨种进化研究，具一定的理论意义。

At the same time , this study was first documented trans-species polymorphism of MHC Class ⅱ B gene in reptile , and would redound to researches of trans-species evolution of MHC genes .

克里伯特和他的母亲在Facebook页面上发布了一段时长4分半的视频，收到了300多万的点击量。视频中克里伯特把一个小西瓜扔进了这只爬行动物张开的下颚。

In a 4-and-a-half-minute video posted on Facebook -- which has gathered over 3 million views across Kliebert and Kliebert 's mother 's pages -- Kliebert tosses a small watermelon into the reptile 's waiting jaws .

本文研究中国石龙子（Eumeceschinensis）季节性繁殖的生物学问题，探讨爬行动物有鳞类的繁殖生物学模式。

In this dissertation , Eumeces chinensis distributing mainly in China , as a model animal was used to study patterns of reproductive biology of squamate reptiles .

这并不是不可能的事情，但回答非常复杂的问题的时候就会感觉困难，不过如果双腿站稳就可以避免这种感觉，Wood表示，这与边缘爬行动物大脑与大脑新皮层之间的切换能力有关系。

Its not impossible , but its difficult to answer highly complex questions unless both of your feet are on the ground , Wood says . It has to do with being able to go back and forth easily between the limbic reptilian brain to the neocortex brain .

DavidWeathers是一名短吻鳄猎人及饲养者，他表示喂食短吻鳄非法的原因是，一旦这种爬行动物从人类获得食物之后，他们就不再害怕人类。

David Weathers , a nuisance-alligator trapper and owner of several alligators , said the reason it 's illegal to feed alligators is because once the reptiles are fed by humans , they lose their fear .

通过哺乳动物与爬行动物和鸟类基因组上Ⅰ型毛角蛋白及IRS角蛋白基因的比较，表明进化出功能上有差别的毛角蛋白和IRS角蛋白基因可能是是形成毛发的前提条件。

By comparing the hair keratin and IRS keratin genes on the genome of mammals , reptiles and birds , the differentiation of functionally hair keratin and IRS keratin may be a prerequisite for hair formation .

结论两种爬行动物胃肠胰系统5-HT细胞的分布及其形态学特征和组织学分布存在着较多共同点，体现了两者消化生理的相同点；

Conclusion Many common features in distribution , morphological characteristics and histological location of 5-HT cells in the GEP system are found in the two reptiles . And those common traits reflect the similarity in the digestive physiology of the two reptiles .

本论文对涉及饲养条件下夏秋两季扬子鳄的行为和活动时间分配进行了研究，同时基于NT-3和BDNF基因部分序列探讨了扬子鳄的分类地位和爬行动物的系统发生。

This paper researched the behaviors and time budgets of captive-bred Chinese alligator , and discussed the taxonomical status of Chinese alligator ( Alligator sinensis ) and the phylogeny of the reptiles based on the sequences of NT-3 and BDNF genes .

在四种爬行动物消化道所含内分泌细胞中，5HT-IR细胞是分布最广的一种，其在四种动物消化道各段均有分布，但分布型各不相同；

5HT-IR cells is the only one that extensively distributed in whole digestive tract of four reptiles which distributive mode were different from each other .

世界自然基金会（WWF）本月公布的一项研究显示，从1970年到2010年，中国爬行动物和两栖动物的总量下降了97%，而哺乳动物数量——人类除外——在同一时期下降了50%。

From 1970 to 2010 , the population of reptiles and amphibians fell 97 percent in China , while the mammal populations - humans excepted - fell 50 percent during the same period , according to a study released this month by the World Wide Fund for Nature .

红耳龟（Trachemysscriptaelegans），是最常见的爬行动物，由于他们个子不大，而且有能力适应各种生活环境，因此成为全球最受欢迎的宠物之一。

The Red-ear slider ( Trachemys scripta elegans ) turtle species , is probably the most widespread reptile species worldwide and the most popular turtle in the pet trade all over the world because of their small size and ability to adapt to various habitats .

性类固醇激素对雄性爬行动物生殖周期的调控

The regulation of sex steroid in reproductive cycle of male reptile

严格地说，蛇晰是一种爬行动物。

Strictly speaking , a slow-worm is a kind of reptile .

云南省东北部两栖爬行动物调查

The survey of amphibian and Reptilia in Northeast of Yunnan Province