It is essential that endangered species of animals be protected against being killed.
保护濒危的动物物种免遭残杀是必需的。
While studying endangered species may provide some insights to scientists, the cost of keeping these animals in existence can not be justified for research purposes alone.
虽然研究濒危物种可能为科学家提供一些领悟，但仅仅为了研究的目的而饲养这些动物的话，其饲养成本是不合理的。
Animals description, their regions and endangered species of the world can also be seen.
也可以看出动物的描述，他们的地区和世界濒危物种。
The success of this technology and improve the quality of poultry for the vegetative propagation of rare and endangered animals, extinct species of great significance Chuan.
这一技术的成功与完善对于优良家禽的无性繁殖和濒临绝迹的珍贵动物的传种意义重大。
Many of the earth's plants and animals have died out, and several other species are endangered.
地球上的许多动植物已经灭绝了，其他的一些物种也正濒临灭绝的危险。
Thee world has more than 794 kinds of wild animals, there are 76 families, 300 species endangered, there are many extinct.
全世界有794多种野生动物，其中有76科300余种濒临灭绝，还有很多已经灭绝了。
Statistics show that there are about 34,000 species of plants and 5,200 species of animals endangered around the world, which means that every normal day there is a species that goes extinct.
资料显示，全世界目前约有34000种植物和5200种动物濒临灭绝，我们所度过的每一个寻常日子，平均有一个物种正彻底消失。
Many of the earth's plants and animals have already died out, and several other species are endangered.
很多地球上的植物和动物已经灭绝，还有一些其他物种的生存处于危险境地。
The species - like many other lemurs, like many other animals in Madagascar, like so much of life on Earth - is endangered and dwindling fast.
这个物种——象许多其它的狐猴一样，象马达加斯加许多其它动物一样，或者象地球上的许多生物一样——处于频临灭绝和迅速地减少的状态。
This biotope offers a particularly extensive and varied array of plants, as well as marsupials and singing birds, along with other rare and endangered animals and plant species.
这里的环境特别适于不同种类的植物、有袋动物以及鸟类生存，同时也给那些稀有濒危动植物提供了的生存条件。
This biotope offers a particularly extensive and varied array of plants, as well as marsupials and singing birds, along with other rare and endangered animals and plant species.
这里的环境特别适于不同种类的植物、有袋动物以及鸟类生存，同时也给那些稀有濒危动植物提供了的生存条件。
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