The current biodiversity is enough to amaze people, but we must know that many organisms have evolved a long time ago, to survive on earth and adapt to the earth’s environment, each organism also develop different abilities.

Hydrothermal snails live in the deep sea.

To be able to eat more food, they developed very sharp claws, and their running speed increased, and many prey animals learned some instincts to survive on their own, such as a Some animals will change color, some animals will camouflage, and among many animals, the most effective animals to protect themselves are crustaceans, in nature, such as crabs, turtles and other animals. Other animals, they have evolved, have very hard shells.

The harsh living environment causes snails to adapt to a 3-layer shell.

According to statistics, there are currently more than 20,000 types of crustaceans on earth. These crustaceans usually have no natural enemies, because when enemies come to eat them they will retreat into their shells and there is no way to eat them. There is one creature among them, they have the hardest shell in the world, this creature’s shell is made of iron.

Very deep at the bottom of the Indian Ocean, near hot hydrothermal vents, where hot water streams erupt into tall, black columns of smoke, there lives a strange gastropod with the scientific name Chrysomallon squamiferum. This is a species of hydrothermal snail that belongs to the mollusc family that lives in the deep sea.

It is said that even a bullet cannot penetrate the shell of this snail. The operating range of this snail is more than 2,000 meters under the sea. In general, this snail lives in hydrothermal vents. This is where water pressure, temperature and acidity are high, while oxygen content is very low. Because their shells are very hard, they can withstand great pressure.

The harsh living environment has caused the scale-footed snail to evolve towards the development of a unique set of armor. Specifically, the shell of a scale-footed snail consists of three layers , each layer is believed to have a separate protective function.

Hydrothermal snails.

Scientists say this is the only creature on Earth known to have the ability to use iron in its shell as a protective layer.