The animal that is 10000 times heavier than a blue whale is the Giant Siren of the North Sea.

The Giant Demon of the North Sea is 100 times bigger than the blue whale in the ancient Nordic book records: there is a huge mysterious creature living in the ocean - the Giant Demon of the North Sea, which is 100 times bigger than the blue whale. Mainly live in the seabed 10,000 meters deep, it is rumored to have seen it people say it is very similar to the squid king, when it surfaced thought it was an island, in fact, is a giant creature.

Morphological features

Because of its huge size, some sailors mistook its body for an island when it surfaced, and even climbed onto the island and set up camp on it, only to be buried at the bottom when it sank.

The Giant Siren of the North Sea, with its huge tentacles, could have swept a huge ship or vessel to the bottom of the sea, and it is thought to have been based on the giant king squid found in the Norwegian Sea.