两栖动物的皮肤是透水的。
河的两岸是野生动物的自然栖息地。
他们手无寸铁，而且遭到偷袭，两只动物怎么对付得了几百只呢？
They were unarmed, and taken by surprise, and what can two animals do against hundreds?
在那之后，人们饶有兴趣地看着这两只可爱的小动物。
After that, people watched these two cute animals with great interest.
这个动物园里有两种狮子。
在动物园我看见了两只小鸟。
在动物园我看见了两只小骆驼。
去年，两头宽吻凯门鳄被送到了尼泰罗伊附近的动物园。
Two broad nosed caimans were sent to a zoo in the nearby city of Niteroi.
研究人员发现，这两种动物中，年轻的更喜欢分享。
Young animals of both species were good at sharing, the researchers found.
这两只动物外貌很相似，但它们属于不同的种类。
The two animals are similar in appearance， but they belong to different species.
假设某种动物有一个实现两种不同功能的基因。
Suppose an animal has a gene that carries out two different functions.
由两个物种的细胞混合而诞生的动物，其科学术语唤作嵌合体。
The scientific term for an animal with mingled cells from two species is chimera.
时至今日，这两种体型中等的动物始终被认为是同一种生物。
Until now, the two midsize animals were thought to be the same species.
上周，我们看了一场关于两只驯养的动物的记录片。
它有两排尖牙，这种肉食动物也非常令人恐惧。
And with two rows of teeth, the predatory fish is also terrifying.
然而，两家动物园均没有证实这条消息。
However, neither of the two zoos has confirmed the information as yet.
这是一种对抗鸟类、爬行动物、两栖动物等袭击的基本防卫手段。
It's basically a defense against birds, reptiles, amphibians, that sort of thing.
该建筑由动物皮毛覆于木质框架而制成，有两个入口和两个火塘。
This animal skin over wood frame structure included two entrances and two hearths.
动物园中还有两只来自马来半岛的合趾长臂猿。
正是在此次灭绝之前，原始两栖动物第一次爬上了陆地。
Right before the extinction events, the first proto-amphibians made it onto shore.
动物园的最后一头大象，已经孤单地生活了超过了两年。
Ruperta, the last elephant, has been alone for over two years.
但是它们有四颗门牙，而大部分的啮齿类动物只有两颗。
动物园里有两只狮子。
我会去动物园做两个星期的志愿者。
这个动物有两只大耳朵。
这种蟾蜍可能是已经消失的两栖动物中最著名的一个。
这个动物有两只小圆眼睛。
两者似乎比走路、游泳或动物行为更复杂些。
Both seem more complex than walking, swimming or animal behavior.
两者似乎比走路、游泳或动物行为更复杂些。
Both seem more complex than walking, swimming or animal behavior.
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