Does a nautilus have eyes? Many people have this doubt, and the sea tiger is here to tell everyone that the nautilus has eyes.
The eyes of the nautilus are unique pinhole eyes in nature. Its eye lacks a lens, retains only the simplest light signal transduction pathway and only one photoreceptor molecule, and can only use photoreceptor cells to adjust vision through small hole imaging, and does not have the ability to distinguish colors.
Despite the simple structure of the nautilus's eyes, it has a unique survival strategy. In dark, deep-sea environments, the nautilus relies on its pinhole eye to sense light and shadow in search of food and avoiding predators. Its eyes are able to perceive faint rays of light, helping it survive in the deep sea.
In addition, the eyes of the nautilus are highly adaptable. Because the pressure and light conditions of the deep sea environment are very different from those of the shallow sea, the eyes of the nautilus are able to adjust the sensitivity of their photoreceptor cells to different light conditions in response to changes in the environment. This adaptability allows the Nautilus to survive in a wide range of light conditions.
In addition to being adaptable, the nautilus's eyes also have extremely high acuity. Although they cannot distinguish colors, their eyes are very sensitive to the direction of light and can sense changes in the direction of light, which gives them an advantage when searching for food and avoiding predators.
In conclusion, despite the simple structure of the nautilus's eyes, they have unique survival strategies and adaptability. They are able to perceive faint light in deep-sea environments, adapt to different lighting conditions, and have extremely high acuity. These characteristics allow the nautilus to survive and thrive in the deep sea.
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