Family, why are deep-sea fish ugly?

20 13 Deepwater Fish was selected as the ugliest animal in the world and became the mascot of the British Ugly Animal Protection Association. It is really ugly beyond the level, and ugly is not fashionable. Why do deep-sea fish look strange? How difficult is it to cook fish in the deep sea? ?

Why do deep-sea fish look strange? This is because the living environment in the deep sea is so different from the familiar environment. Living here has to endure high pressure, darkness, lack of food, low temperature near zero, lack of oxygen and loneliness that you may never find someone. They didn't grow casually, but cruel natural selection forced them to grow like this. After all, it's not because life is too hard.

The scientific name of the tube-eyed fish is the atmospheric anal fish, and its primitive body is transparent. It is called tube-eyed fish because it has a pair of tubular eyes. These two points that you think are the eyes are actually its nostrils. His eyes are two green glass balls on his head. He looks like this because he usually lives in the underwater sound of 600 to 800 meters. The light here is very weak, and only a small amount of blue light can reach here from above. So we must evolve a visual system that is extremely sensitive to light. Of course, the prominent eyes can accommodate more lenses, columnar cells and retina, and the transparent hood can let the light pass through directly, so that even if you live in a dark environment, you can find food.

Viper found another way and pointed out another practical deep-sea skill. The vice minister of active lightfish wears two rows of illuminators. When he is in extreme darkness, the light emitter can provide illumination and attract prey to the door. In a weak light environment, these two bands of light may be confused with the background light falling from the upper layer, blurring the outline of his body and making it difficult for other fish to recognize its existence. This is the so-called effect of counteracting light and protecting color. It is full of sharp and long teeth, which can be opened to an exaggerated 120 degrees. The food in the ocean comes from the photosynthesis of primary producers such as algae, but they are all concentrated in the surface waters within 200 meters of light, so fish living below 200 meters can only eat food scraps falling from the upper layer or prey on other organisms for a living. His fangs, big mouth and great flexibility didn't make him bite the prey about his own size and swallow them whole in the water, so he would miss a good meal because the food was too big.

Dripping fish is a kind of fish that tries to observe the extreme. It has no scales, no fishbones, and even few muscles and bones. Usually I don't swim very much, so my body is not very long and streamlined, but it is made up of a gelatinous substance with a density smaller than that of water, which is very soft and relaxed.

Ankang fish with small lanterns is ugly, too. In fact, only the female Ankang has lanterns and innate luminescent bacteria, which can attract prey. Men's well-being is much smaller than women's. They will look for a mate through an external machine, and when they find it, they will bite the abdomen of the female fish, and then they will never let go. It's hard to meet a similar person, maybe of the same sex, which is much more difficult than finding food.

In this environment, deep-sea dogs and female fish simply gave up vision and turned all their skills to touch. When the sea moves, deep-sea dogs and female fish will spread their strips against the current, detect the prey brought by the current, and then have a full meal. Mariana lionfish is the deepest deep-sea fish ever discovered. It lives in the deep sea of 7000 to 8000 meters and bears a full 80000 feet of water pressure. This feeling is probably similar to 800 kilograms of cattle standing on your fingernails.