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经济学家魏杰教授说过这样一件事:野生东北虎几近灭绝,国家为此制定了一项“放虎归山”计划,把动物园里的老虎放回东北大森林,以便让子孙后代能够看到野生东北虎的风采。结果,当装着老虎的铁笼子被打开后,老虎走进丛林十几米,又重新钻回笼内,死活也不肯再出去,这大大出乎人们的意料。后来,人们才意识到:原来,若干年的铁笼生活,早已使老虎丢失了主动捕食的意识,
Professor Wei Jie of the economist said such a thing: The wild Siberian tiger is almost extinct. The state has formulated a plan to “put the tiger back” and put the tigers in the zoo back in the northeast forest so that future generations can See the wild Siberian tiger style. As a result, when the iron cage containing the tiger was opened, the tiger walked into the jungle for more than ten meters and then re-drilled it back into the cage. He refused to go out again and again. This was greatly unexpected. Later, people realized that, originally, the life of iron cages for several years had long caused the tiger to lose the consciousness of taking the initiative to prey.