Take a select group of animals, megafauna from places like Africa and Asia, and introduce them into other ecosystems similar to their current homes, beginning in the United States.
Researchers who are unfamiliar with the cultural and ethnic groups they are studying must take extra precautions to shed any biases they bring with them fromtheir own culture.
不熟悉所研究的文化和种族群体的研究人员必须采取额外预防措施，以摆脱他们从自己的文化带来的任何偏见。
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You see, it turns out that certain microorganisms are chemosynthetic—they don't need sunlight because they taketheir energy from chemical reactions.