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Altruism" is the biologists' term meaning kindness,generosity, and evolutionary biologists have worked really hard to explain why animals might evolve to be kind.
利他主义是生物学术语,意思是善良，慷慨，进化生物学家努力去解释,为什么动物进化趋向善良。
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Walk. I like to go to the zoo. As a matter of fact, I'm walking down to the zoo right now.
散步。我喜欢去动物园。其实，我现在正要去动物园呢。
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Remember behaviorists were entirely comfortable studying animals and drawing extrapolations to other animals and to humans.
大家都还记得，行为主义者研究动物,然后去推断其他动物以及人类。
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Several large animal species had disappeared so people had to find other animals and so this changed from going to find animals to domesticating animals, and shift from collection of plants to production of plants.
很多大型动物物种已经灭绝了,人类不得不去寻找其他动物,因此这也就完成了从狩猎到驯养的转变,从采集到种植的飞跃
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I definitely recommend you go.
我肯定会推荐你去该动物园。
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His harmonious unity with nature is broken, he clothes himself and his old friends the gazelles run from him now He will never again roam free with the animals. He cannot run as quickly. His pace slackens, he can't even keep up with them.
他与自然的和谐被破坏，他开始穿上了外衣,以前的朋友羚羊，离他而去,他不再和动物一起，四处游荡,行动变得迟缓，再也无法赶上羚羊。
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And we are invited to imagine the fate of, again finding ourselves in the bodies of other creatures and, if you can imagine this, this is because you are imagining what you are as separate from the body that you reside in.
在这里,作者再次邀请我们去想象,我们自己被困在其他动物身体里的场景,如果你能想象如此场景,那是因为你将自己当做了,与所依肉体相分离的心理实体
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The history of the military in the United States and other countries includes a lot of attempts to get animals like pigeons or dolphins to do interesting and deadly things through various training.
各国在其军事史中,都有试图通过训练鸽子海豚等动物,去完成各种高难而致命任务的尝试。
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But if you throw off the environment, in this case, the animal's biology, it's drive for certain nutrients is in concert with the food it has access to.
如果让它们换个环境,这种情况下,这些动物的生理特性,即它们有多少动力去获取某些营养元素,是与其食物源状态有关的
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