埃默里大学著名灵长类动物学家法兰斯·德瓦尔认为：不只是猫科和犬类，甚至是老鼠也能表达恻隐之心以及其他情感【消息来源：科技美国】。
Frans B.M. DE Waal, a noted primatologist at Emory University, says that a variety of animals — not just cats or dogs, but even rats — feel empathy and other emotions [Source: Scientific American].
弓形虫并不只是老鼠要面对的问题。
但是奥克兰大学的入侵物种研究专家米克·克劳特指出，入侵物种并不只是老鼠。
But as Mick Clout, an invasive species specialist from Oakland University points out, it didn't end with rats.
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