It's a lancet fluke: it's a little brain worm — a parasitic brain worm — that has to get into the stomach of a sheep or a cow in order to continue its life cycle.
这是一种枝双腔吸虫(lancetfluke)，它是一种很小的活在大脑里的虫子，一种大脑的寄生虫，它必须要进入到绵羊或奶牛的肚子里才能继续活下去。
He said that even Dolly, the famous sheep that was the first mammal to be cloned, suffered from obesity and brain abnormalities.
他说，甚至第一只克隆哺乳动物，即著名的克隆羊多莉，也患有肥胖症和脑异常。
He said that even Dolly, the famous sheep that was the first mammal to be cloned, suffered from obesity and brain abnormalities.
他说，甚至第一只克隆哺乳动物，即著名的克隆羊多莉，也患有肥胖症和脑异常。
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