The adaptation of eyes was lost because it gave no competitive advantage.
Most likely the fact that the fish has no eyes indicates that the cave that the fish lives in is very dark, and the fish has no evolutionary use for the eyes. Eyes may also indicate a weak spot where predators can attack, so not having eyes may help with the fishes survival.
A sightless fish is a fish that lives in a dark cave and the fishes' DNA knows that the eyes are not needed so the eyes go away
An anglerfish
Yes. But before they were located in the areas they are today. Ex: Cave fish had eyes when they were fish. Once they moved to caves they lost vision over time.
Yes they do. They get stressed out if they don't have a hiding place. plants or caves will do.no.
2 ways that Fish are adapted to living in water are gills and fins, or scales ( streamline) and protected eyes.
Animals which live in caves for all or much of their lives include blind fish, a type of arachnid called a harvestman, and crickets. Animals which live in caves seasonally or temporarily, or which shelter in caves include bats, snakes, lizards, bears, mice, rats, and humans.
When one is underwater they look like their eyes are glowing in the dark.
By sensing the light produced by the special organs on its skin
By sensing the light produced by the special organs on its skin
By sensing the light produced by the special organs on its skin
Er, SWIM!