What are the insects whose eyes are not on their heads, and can the eyes of insects see things?

Insects have eyes on their heads.

Worms with eyes on long stalks.

Insects have a variety of eyes, some surprisingly large and some surprisingly small; Some have a pair of monoculars, while others are compound eyes made up of tens of thousands of small eyes. However, no matter how strange and strange these eyes are, most of them grow on the surface of the insect's skull. However, the world is so big that there is no wonder that there is a worm whose eyes do not grow on the skull, but on the two long stalks that protrude from the head.

The length of the long handles of these two eyes is even more than the length of its own, and people who don't know it often mistake it for the tentacles on its head when they see these strange eyes.

This insect with strange eyes is named after the strange eye, which is called the protruding eye fly.

Seeing such a pair of strange eyes of the protruding fly, you may think: there must be something different about its eyesight, right? Yes, scientists have shown that the more the compound eyes of insects protrude outward, the wider the field of view.

The eyes of the protruding eye fly are far away from the skull, growing at the top of the long stalk, and it is really stupid to say that it is "going to be the top of the mountain, and you can see the mountains at a glance". With such a pair of eyes, it can see clearly in all directions, from front to back, left and right, up and down. However, then again, the eyes of the protruding eye are compound eyes made up of many small eyes.

Studies have shown that the more small eyes that make up the compound eye, the better the vision. However, the eye of the protruding eye grows at the tip of the long stalk, so it cannot grow very large, and there are very few small eyes that make up the compound eye, so its eyesight is naturally not very good. In this way, although its vision is good, it is a short-sighted eye wearing "overhead glasses".

In addition, the eye of the flyer is too far away from the brain compared to other insects, and the time it takes for images to pass through the nerves is naturally longer than that of other insects, so it will also be slower to respond to objects in the field of vision. As for whether the eyes of the protruding fly, like the telescope, can expand and zoom at will, so as to see distant objects clearly, this remains to be further studied.

There are two types of insect eyes, one is called compound eye and the other is called single eye.

The head of an insect generally has a pair of compound eyes, which are composed of many small eyes, each of which is hexagonal, but this does not mean that there are as many small eyes as there are to see how many flowers, but each small eye can only see a part of the object, and the whole eye sees the object like a patchwork.

Insects have a very wide field of vision, they are not like our eyes, they can only see objects in front of them. Lo and behold, the compound eyes of the protruding eye fly are born on the stalk-like protrusions on both sides of the head, and it can see objects in all directions, and it is not easy to approach it.

In addition to the two main compound eyes, many insects also have several small eyes, known as monoculars, each of which consists of only one small eye, and the function of the monocular may only be to distinguish the brightness and darkness of light.

OK. The eyes of insects include a single eye and a compound eye, which is made up of many small hexagonal eyes, and the single eye is divided into dorsal monocular and lateral monocular. In addition to parasitic insects, most insects have a pair of compound eyes, and there are 1 to 3 dorsal monocular eyes on the top of the head.

The uniqueness of vision, insects can see ultraviolet rays that humans and most animals can't see, and some petals can reflect ultraviolet rays, so insects can rely on this unique vision to find nectar and pollen according to the changes in ultraviolet rays.

OK.

The visual organs of insects include compound eyes and monocular. Compound eyes are located on both sides of the insect's head and are formed by a different number of small eyes. The composition of the monocular is similar to that of the microphthalmia, and it can be divided into dorsal monocular and lateral monocularity according to the location of its birth.

The body of all insects is divided into three parts: head, thorax, and abdomen, and the head has eyes, antennae, and mouthparts; thorax with three pairs of feet and one to two pairs of wings; The abdomen contains internal organs. They have a stiff exoskeleton on their body that protects their soft bodies.

Insect eyes are not made up of a single organ like mammals, but are made up of many separate eyes. The reflection of the lens of all the eyes is synthesized into a chimeric picture of the outside world, which is not different from the image seen by the human eye, but it allows the insect to detect very small movements. Insects like dragonflies and flies have eyes that cover most of the surface of their heads, allowing them to detect predators from all angles, so swatting flies is a difficult thing to do.

Of course you can see things.

Insects are a pair of compound eyes that are made up of many single eyes. This eye may not image as clearly as the eye of a vertebrate, but seeing is fine. In addition, the eyes of many insects can also see ultraviolet rays, etc., which are not visible to the eyes of many vertebrates.

That is, they can receive a much wider range of electromagnetic spectrum than vertebrates.

The eyes of insects are divided into single eyes and compound eyes.

Among them, one eye can only sense light and cannot image, that is, it cannot see anything; The compound eye, on the other hand, is able to image, that is, to be able to see.