There are many animals in the world that do not need eyes, so their eyes gradually degenerate, and the following is an introduction to the 10 most amazing "blind animals".
1. Cave salamander
The cave salamander is the only vertebrate in Europe that is particularly adapted to the cave environment. Unlike other amphibians, it sleeps, preys and reproduces underwater. Since they inhabit dark caves and are blind, all their other senses become more sensitive.
2. Brazilian blind carp
This unique little fish was rediscovered in 2010, when we only had one sample found more than half a century ago. It lives in caves in the Brazilian state of Minas Gerais, but we have little idea of its lifestyle and diet.
3. Blind cave crab
Although it is called the blind cave crab, it is actually a crouching lobster. This species is found only in the Hameos volcanic water cave on Lanzarote. No one has seen its eggs or seen it eat, and interestingly, no dead individuals have been found.
4. Freshwater hydra
This freshwater hydra uses its prickly tentacles to capture food as well as defend itself. Although it has no eyes, the stinging cells in its tentacles respond to light. These small creatures of less than 1 centimeter have the same number of genes as us, and they are biologically "immortal gods".
5. Wide-mouthed Satan catfish
Broad-mouthed Satan catfish is an albino freshwater catfish that has never been used despite studies showing that the creature has a visual system. Its sensitive lateral lines seem to help it find food, and it is considered the top predator in its habitat.
6. Texas blind salamander
The adult Size of the Texas Hawk Salamander can reach 12.7 centimeters, and its red cheeks can absorb oxygen from water. Its food changes depending on the organisms that appear in its habitat. When it preys, it swings its head from side to side to feel the waves and vibrations produced by its prey.
7. Blind snake lizard
You may wonder why it is called a lizard when it does not retreat, when in fact more than 200 lizard species around the world have no legs. It is thought to live underground, and it is said to have a keen sense of smell and prey on it.
8. Mexican carp
This freshwater fish is completely depigmented, which makes it a patient with albinism. Although it doesn't have eyes, it uses a lateral line to feel changes in water pressure. According to some studies, this fish grows eyes when embryonic, but something stops the development of the eyes.
9. Southern cave crayfish
The creature is only 4.5 centimeters long, and its sense of touch and taste compensates for the lack of vision. With these enhanced sensations, it can easily navigate the dark underwater environment, preying on fish and insects.
10. Kauai Cave Tarantula
Compared to other tarantulas, this creature is not dangerous to humans, and its most recognizable feature is its lack of eyes. This species is very rare and endangered. Instead of using cobwebs to prey, they chase after their prey and bite it with their teeth.
11. Leptodirus beetle
The Leptodirus beetle is only a centimeter long on average, and scientists believe it feeds mainly on the carcasses of burrowing animals. This species has only been found in the European Alps.
12. Madagascar blind snake
The snake can reach a length of 25 centimeters, but unless it opens its mouth or is moving, it is difficult to distinguish which side is the head and which side is the tail.
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