Do Jellyfish Without Brains Have Eyes?

Jellyfish, which do not belong to the fish category and belong to the plankton class, have a very vital position in the food chain of sea creatures and Perhaps the most striking of all aquatic creatures.

Alright Are these creatures’ eyesight so perfect that it’s worth running away from them? And are they as dangerous as we think?

With different sizes, structures and shapes, jellyfish have unique characteristics and abilities.

These creatures have a gelatinous body structure and most of them have a transparent body. More than 10,000 different types These creatures usually live in the middle of the ocean, in very deep places.

Living in salt water, jellyfish largely stay away from fresh water. At the same time, their bodies packed with enough venom to kill a human or prey and they can sting badly.

Jellyfish have a very simple anatomy compared to other sea creatures.

These creatures they don’t have bones, brains and hearts and yet they do not have many of the vital organs that we do.

Jellyfish, whose body is 98% water Its chemical structure is as simple as its physical structure.. In this structure, the epidermis takes on the task of protecting the organs; The gastrodermis is its inner layer. A gelatinous filler called mesoglea is also the part between these layers.

jellyfish, they carry a single mouth on their body and with this mouth, they both take food and empty their feces. They also have a simple stomach structure and tentacles of various shapes and lengths are indispensable limbs for them.

Let’s get to our main topic: Do these creatures have eyes?

When we think of the eye, although we think of a structure like ours, the situation is a little different for jellyfish. In fact, the ability to see to gain functionality only with an organ with an eye-like structure. There is no need.

These creatures do not have a brain structure to process complex visual stimuli, but brain-like and they also have tentacles that they use to forage for food.

At the tip of these tentacles, they will be able to detect light and different chemical traces in the water and at the same time orient themselves. sense organs available.

Jellyfish’s eyesight is not usually limited to a single organ like us.

Most jellyfish use these abilities. with neural and protein networks called opsins performs. But it is not possible to put all jellyfish in the same mold at this point. For example, the eyes of the Cnidarian and Solentera species have undergone many evolutionary changes. box jellyfish too a total of 24 opsines has.

Two of the box jellyfish’s opsins are similar to our eye structure and have the same image-forming ability. These are defined as the upper and lower lens eyes and their orienting, responding to light, and avoiding obstacles. makes a great contribution.

These eye structures of box jellyfish, unlike other species, have real eyes consisting of corneas and lenses.

These structures containing the eyes are those in which the eyes are suspended. from a transparent tissue occurs. These eyes can also turn in all directions and contribute to the ability of this creature to always direct its eyes upwards.

A type of jellyfish, also known as box jelly six vision bundles on each side of his body and in this way it can detect light. At the same time, these perceptions play a big role in their survival.

In addition to all these, these creatures do not need strong eyesight as they are not a predatory species, and it is not possible for them to see us as we see them. According to a study, jellyfish, which scare all living things around with their poisonous stings, By inserting 120 million people in 1 year caused various health problems.