because if they had big eyes they would reflect any possible sunlight and then the predator will see them.
as there is no light in deep waters,deep sea fishes get their eyes reduced during evolution.due to the availability of some light at middle of sea fishes living there have bigger eyes for clear vision.
No. Not at all. Sharks and other fishes have special eyes that doesn't allow the water to bother them.
There can be a lot less light under water. The fishes' big eyes gather more light, allowing them to see under water better than small-eyed creatures. the better sight lets them find food much more efficiently.
of course they have eyes
gulper fish have small eyes because it help prevents water from damanging it eyes
The white coat over a fishes eyes is a lens that helps to shield its eyes from debris that is floating in the water, which also helps it maintain better sight.
That depends on how deep. There are fish that live in darkness all the time. Some don't even develop eyes, because they don't need them. But other fish have some kind of glowing light on their bodies that attract prey, so there is some light even down in the blackness.
2 ways that Fish are adapted to living in water are gills and fins, or scales ( streamline) and protected eyes.
Deep-set eyes. Deep-seated conviction or belief.
NO there is no animal that have their mouth above their eyes
they use there eyes to see or look
Gills for breathing Eyes to see Tail to swim