查询词典 Mammals

The dorsal fin is the vertical fin on the back of a fish and certain marine mammals.

背鳍就是在鱼或者某些海洋哺乳动物背上的垂直鳍。

As evidence, Dunbar cites a relationship between neocortex size and group size of various mammals.

作为证据，邓巴列举了各种哺乳动物的大脑皮层尺寸和群组大小之间的关系。

Founded on this English Channel island in 1959 by zoologist Gerald Durrell, the Jersey Trust Zoo protects and breeds more than 100 endangered species, including birds, mammals, reptiles, and amphibians.

由动物学家德雷尔于1959年在这个英吉利海峡小岛上建立的泽西希望动物园（现在叫做德雷尔野生动植物保护区）保护并繁育着超过100种频临灭绝物种，其中包括鸟类、哺乳类、爬行类和两栖类动物。

Founded on this English Channel island in 1959 by zoologist Gerald Durrell, the Jersey Trust Zoo protects and breeds more than 100 endangered species, including birds, mammals, reptiles, and amphibians .

泽西信托动物园(现改名为杜瑞尔野生动物园)位于英吉利海峡的岛上，在1959年由动物学家杰洛德杜瑞尔建立，这里保护饲养着包括鸟类，哺乳类，爬行类和两栖类等在内的100多种濒危动物。

The echidna is such a unique animal that it is classified in a special class of mammals known as monotremes , which it shares only with the platypus.

因针鼹鼠之独特，被定类为特殊的哺乳动物，属单孔类动物。单孔类动物只有针鼹鼠和鸭嘴兽。

A member of the Monotremata, an order of primitive egg-laying mammals restricted to Australia and New Guinea and consisting of only the platypus and the echidna.

单孔'。''目动物中的一员，是远古蛋生哺乳动物的一目，限生活于澳大利亚和新几内亚地区，只有鸭嘴兽和针鼹种类

In addition, there thousands of mammals, birds, and 20 a variety of fish, of which the kangaroos, koala, echidna, platypus, black swans, emus and other rare animals known.

另外有上千种兽类、鸟类和20多种鱼类，其中以袋鼠、树熊、针鼹、鸭嘴兽、黑天鹅、鸸鹋等珍奇动物闻名于世。

They are one of the few mammals that can use sound to navigate, which is a trick called echolocation.

它们是极少数能用声音导航的哺乳动物之一，这种导航方式即所谓的回声''。

Also known as orcas, these marine mammals often use echolocation to find their prey, which usually consists of fish and squid.

也被称为逆戟鲸，这些海洋哺乳动物经常使用回声定位法找到自己的猎物，这通常组成由鱼类和鱿鱼。

In mammals, the primitive ectoderm is an epithelium of polarized cells that differentiates into all embryonic tissues.

事实上，我们的生命开始于一个细胞团，但在24小时内，一些细胞死去，而另一些形成一个空心的细胞球，这就是原始外胚层。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。