Kinds of Animal 动物的种类

This world is filled with animals, and these animals can be divided into so many kinds based on biological theory. But from the relationship between animals and human, we can divide animals into six kinds. They are:
1) farm animals, like cattle, sheep, pigs, poultry, water animals, and so on
2) experimental animals, like white mice, frogs, monkeys, fish
3) companion animals, like pet dogs and cats
4) working animals, like seeing eye, fire fighter, and rescue dogs
5) entertainment animals, like circus animals
6) wild animals, like bear, deer, etc.
From http://www.gmw.cn/CONTENT/2004-07/07/content_548818.htm

中文翻译：
这个世界充斥着动物，基于生物理论，这些动物能够被分成很多种类。但是从跟人类的关系来分，我们可以把动物分成六个种类，分别为：
1. 农场动物，如牛，羊，猪，家禽，水生动物等等；
2. 实验动物，如小白鼠，青蛙，猴子，鱼；
3. 伴侣动物，如宠物狗和猫；
4. 工作动物，如导盲犬，消防犬，搜救犬；
5. 娱乐动物，如马戏团的动物；
6. 野生动物，如熊，鹿。
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