The oceans on this planet account for seventy-one percent of the Earth's area, but it's easy to forget that we live in such a strange world— a mysterious ecosystem of the deep sea, where the creatures in the nightmare lurk deep below the surface. Pictured: The frilled shark, an ancient shark that lives in the deep sea of about 1500 meters and looks like an eel. The ugly appearance, coupled with the large mouth of the blood basin and the dense and sharp teeth, made people fearful.

Another, uglier fish is found in the deep seas of the Arctic or Antarctica. With a red body, large, bulging red eyes, and sagging red lips, the size is as annoying as a mouse.
Living in the deep sea, it resembles both sharks and rays, and has a cartilaginous skeleton of silver mackerel. The pair of large turquoise eyes looked like alien creatures.
A deep-sea creature with beautiful colors and nine tentacles.
It is known as "the ugliest fish in the world" - the water drop fish. Presumably, no one wants to raise such fish.
A giant orange sea spider. The usual sea spider is only 5 to 6 mm long, and this sea spider caught from the deep sea is the size of a palm.
It's not like an animal, it's like a deep-sea creature of a plant.
It is not very large, but it has a large head and a fierce deep-sea dragonfish with long and sharp fangs.
With an exaggerated and ugly large jaw and sharp teeth, it is an unknown deep-sea creature that is more alien than the alien.
With a large jaw and sharp teeth, it makes people look at the black forktail banded fish that people feel afraid of.
Transparent throughout, it looks like an alien creature all the time. No one knows what it is!