The ocean is the cradle of life. Diving to depths of over 10,000 meters, scientists have discovered things that shouldn't be there.

The ocean, the cradle of countless life forms, bears the origin and evolution of life on Earth.

Scientific research confirms that our common ancestors once thrived here, filling humanity with indescribable emotions and dedication towards the ocean.

With the continuous advancement of technology, human exploration of the ocean is becoming more determined.

From initially glimpsing only a few meters deep into the sea to now diving to depths of tens of thousands of meters using advanced technology, we are gradually unveiling the mysteries of this realm, witnessing many astonishing underwater landscapes and peculiar creatures.

However, during the exploration process, scientists have been astonished to discover some things that shouldn't exist, one of which is plastic.

The deep sea is a world full of unknowns and challenges.

The maximum depth for human free diving is only 214 meters, which is insignificant compared to the depths of ten thousand meters in the deep sea.

However, life in nature has adapted to this extreme environment in astonishing ways.

For example, Cuvier's beaked whale can dive to depths of 2992 meters, becoming one of the deepest diving mammals in the world.

As we approach the depths of ten thousand meters, the surrounding light gradually disappears, and the seawater becomes pitch black.

The pressure here is enormous, with the pressure increasing by one atmosphere for every 10 meters descended. At a depth of ten thousand meters, the pressure reaches an astonishing 1000 atmospheres.

In such a high-pressure environment, even fully equipped divers would struggle to withstand such immense pressure.

The key to exploring the deep sea lies in deep-sea diving technology.

In 1930, two American scientists successfully dived to a depth of 183 meters underwater in a hollow diving sphere, opening a new chapter in deep-sea exploration.

In 1960, the "Trieste" deep-sea submersible, designed and manufactured by a Swiss, successfully dived to the depths of the Mariana Trench, breaking the record for deep diving.

During the exploration of the deep sea, scientists have discovered many amazing creatures and landscapes.

At depths of thousands of meters, various fish can be observed, and even at the deeper depths of 8145 meters, scientists have discovered creatures such as the lionfish.

However, surprisingly, deep-sea probes have also found plastic at depths of ten thousand meters.

Most of this plastic is human-made, brought into the trench by ocean currents or sinking to the seabed after being ingested by fish.

Additionally, some plastics come from modern shipwrecks and the trawl nets used by fishing vessels in the deep sea.

The presence of plastic pollution means that the Mariana Trench is no longer the last pristine place on Earth.

Currently, the global problem of marine pollution remains severe, with concerns and worries about nuclear pollution and other issues increasing.

In addition to plastic pollution, human activities have also had a serious impact on marine ecosystems.

For example, the nuclear pollution caused by the Fukushima nuclear power plant accident in Japan has had a long-term impact on marine ecosystems.

Industrial emissions and waste disposal in Europe, the United States, and other places have also exacerbated the problem of marine pollution.

The ocean is one of the most important ecosystems on Earth, providing abundant food resources for humans and regulating the global climate.

Therefore, protecting marine ecosystems and reducing marine pollution have become important tasks for global environmental protection today.

Only through joint efforts can we protect our common home.