冥童Alex
幼苗
共回答了14个问题采纳率:100% 举报
In the world,there are thousands of different kinds of animals exist.With the development of technology,many animals are dying.Shepard said "we would be less mature,carecare less for and be more careless of all life,including our own kind "(Shepard 1978).People must save animals.Although it is not unethical to keep animals in zoos,some animals must be protected there to avoid being extinct.
One of the reasons for keeping animals in zoos is to produce prosperity.Every species has its own origin,evolution and extinction.While some species are endangered because of human,some are because of environment,climate,food or everything that is against their survival.Hence,people take pains to help them via various ways and setting up zoos in the city is proved to be one of the most successful methods.For example,panda was a kind of endangered animals in the past of China.Most of them lived in Sichuan of China before 1961.At that time,the number of pandas was less than one hundred and getting smaller and smaller.However,when pandas became the first class national protected animals of China,they began to be protected in the zoos.Now,pandas are more than one thousand.Therefore,some animals can be flourishing by keeping them in the zoos.
Another reason for keeping animals in zoos is to keep their breeds.With the hunting of technology,many kinds of animals were disappeared.Lots of animals are close to being extinct,such as northern white rhinos,white-flag dolphins,Mancunian Tigers.By keeping them in the zoos,they can survive the extinction.
1年前
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