The Puffer fish has Tetrodotoxin.
河豚鱼有河豚毒素。

The good: An incredibly expensive delicacy in Japan, the puffer fish has been praised as the most delicious of all fish. No doubt the taste is heightened by a sense of fear.
益处：河豚在日本非常受欢迎，它被誉为最美味的鱼。毋庸置疑，恐惧的感觉会让美味翻倍。

The bad: The fear of the fugu comes from the fact that it is extremely poisonous. The puffer fish must be prepared a special way, by licensed chefs who undergo rigorous training, to be enjoyed. Tetrodotoxin can be found in the liver, ovaries, and skin, and accidental death is the common result of ineffectual removal. As a protective measure, the emperor of Japan is not allowed to eat fugu.
坏处：对河豚的恐惧来自它的毒性。河豚鱼必须要用一种特殊的方法来烹饪。获得许可的厨师需要经过严格的训练。河豚的肝、卵巢和皮肤都含有河豚毒素，如果去除得不够干净会导致意外死亡。