Why is the eels so slimy?

When you try to catch fish by hand, you always feel that their bodies are very slippery and difficult to grasp. Usually, people think that since fish live in water, …

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Why do some ocean glow?

For a long time, stories of glowing oceans have been widely circulated, and Chinese people even refer to this phenomenon as “sea fire.” Do oceans really glow? Some oceans do …

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Why is the Red Sea red color?

Most marine fish, especially certain species living in the deep sea at depths of 2000-2500 meters where light is relatively dim, often emit brilliant light. For example, there is a …

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Why do fish migrate?

In winter, we cannot often eat fresh yellow croaker; similarly, in summer, we cannot often eat fresh hairtail fish. This is because it is difficult to catch them during those …

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