Are there really prehistoric creatures in the Mariana Trench?

The Mariana Trench, the deepest part of the ocean, hides secrets. What did scientists discover?

This is the deepest trench in the world. There are many marine creatures here. The trench is like the secret of the universe. It is full of unknowns. There will be different temperatures, the seawater temperature will be divided differently, and there will also be different marine creatures. Survival. The trench has a complex variety of organisms, and the sea level is far apart. It has an environment suitable for the survival of many organisms. Explorers have been exploring for a long time, and various molluscs or sea cucumbers will appear. There are many secrets here.

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