The concept of seeing or perceiving the environment depends on the sensory systems and adaptations of different organisms. In the case of fish, they are well adapted to their aquatic environment and have specialized senses to perceive and navigate through water.
While fish may not have the same visual perception as humans, they have eyes that are adapted to underwater conditions. Their eyes are specifically designed to see in the aquatic environment, taking into account factors such as the refractive properties of water.
Water has different optical properties compared to air, such as different refractive indices and light absorption characteristics. Fish have evolved to have eyes that can handle these differences. Their eyes often have different shapes, lens structures, and retinas compared to land-dwelling animals. These adaptations help fish to see and make sense of their underwater surroundings.
However, it's important to note that different fish species may have different visual capabilities. Some species may have better vision in certain light conditions, depths, or water types, depending on their evolutionary adaptations and ecological niche.
So, while fish may not perceive water in the same way humans perceive air, they have visual adaptations that enable them to see and navigate effectively in their underwater environment.