10 most shocking mysteries about the ocean floor

Octopuses live on the bottom of the ocean. This mysterious creature is said to have a similar origin to the octopus that swims around the Antarctic region, living very deep below the sea surface. According to the researchers, about 20 million years ago, this octopus moved into deeper water. Many have lost their ink sacs for defense because the deep, pitch-black environment doesn't need camouflage.

City "Brittle Star". Brittle Star is the name for starfish that usually live in coral reefs in the mountains under the ocean. Subterranean mountains rise in a swirling current, providing a rich food source for starfish.

Creatures of the Antarctic deep sea. The Antarctic deep sea is home to countless of the most amazing creatures on Earth. Many strange creatures are found living in icy waters from 600 - 6400m below the sea surface in Antarctica. Scientists have not yet been able to explain how creatures can survive in such cold places.

Hydrothermal vents in the Arctic. Hydrothermal vents, also known as black smoke, spew liquid as hot as nearly 300 degrees Celsius. At the bottom of the Arctic ocean alone, researchers discovered five hydrothermal vents, covered by white bacteria that eat minerals.

Black smoke fossils reveal the origin of life. Seismologists have unearthed a 1.43 billion-year-old black smoke fossil, suggesting that life may have originated on the ocean floor.

Bacteria live on the crust on the ocean floor. Scientists have discovered that the ocean floor has three to four times as many bacteria as the surface waters. Researchers wonder how species can still survive and thrive on the ocean floor.

The spawning place of fish that live on the deep sea floor. The researchers discovered that there are many different species of fish that live in the deep sea, despite the cold, dark space. There is some evidence that they congregate in places such as underground mountains to lay eggs.

Giant squid. This squid not only has a "huge" size but also has huge eyes. Many squid can weigh up to 453kg, 8m long, and the eyes of the creature are nearly 28cm long, equivalent to the length of an orange.

Coral on the bottom of the ocean. Contrary to popular belief that corals only grow in the warm waters of the ocean, researchers have found some reefs tens of kilometers below the ocean's surface, in a frozen environment for millennia. century. The oldest specimen of coral found, 4000 years old, was discovered on the island of Hawaii.

Destroy the ocean floor with dredging. The way of fishing using trawl nets (dropping underground nets on the bottom of rivers and seas) is causing coral reefs to gradually disappear and the aquatic ecosystem to be severely damaged. Currently, scientists are confused about how to save the ocean floor.