According to conventional thinking, simple animals, including sponges, jellyfish and corals, evolved step-by-step in a linear fashion into those with more complex bodies, such as mammals.
按照传统的见解，包括海绵、水母和珊瑚在内的简单动物按部就班发生演变，以线性方式形成像哺乳动物一样的更加复杂的生物体。
There is compelling evidence that climate change has caused disease in corals but is the story as simple for human disease?
有令人信服的证据表明气候变化已经导致了珊瑚的疾病，但是这是否可以简单地适用于人类疾病？
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