以下为句子列表：
英文: A baby tree shrew, on the other hand, receives perhaps less maternal care than any other baby mammal.
中文: 但是不为人所知的是，树鼩宝宝就不一样了，它们得到的母爱也许比其它哺乳动物宝宝得到的都少。
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英文: A boxer named Tasha, selected for her high degree of inbreeding, has had her genetic secrets puzzled out and then compared to partial genetic pictures of other breeds of dog and other mammals.
中文: 他们为一个叫塔沙的斗拳狗的高度近亲繁殖做选择，破解了她的基因秘密，并比较了其他类型的狗和哺乳动物的部分遗传图。
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英文: A few finless porpoises -- smaller, stouter mammals with blunt noses -- were moved into a reserve, along with one baiji. The porpoises survived, but the captive baiji died.
中文: 少数江豚–小而结实，嗅觉迟钝的哺乳类动物–和一只白暨豚一起被转移到一个自然保护区。江豚幸存下来，囿于此地的白暨却不幸死去。
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英文: A large feline mammal (Panthera onca) of Central and South America, closely related to the leopard and having a tawny coat spotted with black rosettes.
中文: 美洲虎，一种产自中美及南美地区的大型猫科哺乳动物（美洲虎猫科），与豹有很近的血缘关系，长有黄褐色带黑色花斑的皮毛。
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英文: “animal” means any non-human mammal, bird, reptile, amphibian, fish or invertebrate capable of feeling pain or distress.
中文: “动物”一词，意指任何非人类，但具有感知痛苦和紧迫能力的哺乳类、鸟类、爬虫类、鱼类或无脊椎动物。
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