After watching "Blue Planet 2" I was blown away by it. This documentary tells the story of the competition, predation, mutual help and interdependence between different species in the mysterious and vast ocean. In the same ocean, every animal has its own wisdom and method: Pigtooth fish uses its own unique way and unremitting efforts to finally achieve its own goal. The brine pools in the deep-sea midnight area are saltier than sea water, and gill eels will go into shock if they stay in the brine pool for too long. Corals tend to have brilliant colors, but they also fade to a single off-white color, this is for the corals to spawn en masse on a particular night, which is how corals reproduce themselves. It is astounding that a large school of small fish in the sea can provide food for a variety of animals. This documentary was filmed with hard work. The production team must ensure that they cannot be harmed while filming, and they must also ensure their own safety when shooting underwater. In order to find marine life, the production team sailed on the sea while sailing. Looking for it in the air, during an underwater shooting, the submarine leaked, but fortunately there was no accident. They went through a lot of hard work to make this documentary with only seven episodes. I was shocked by their persistence. This documentary is also calling on people to protect the environment and protect animals from the plastic that people throw in the sea to decompose into countless microplastics. After these toxic substances are eaten by aquatic creatures, after the series of big fish eating small fish, the more advanced the creatures are. The more toxins in the body, the toxins in these organisms are terrible, for example: the toxin-laden breast milk of a female dolphin can kill a baby dolphin. Also, swarms of whales are now rarely seen due to overfishing. If people do not care for the environment and protect animals, when the animals disappear one day, then human beings will not live long.
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