In the fly insects, when it comes to flies, it is immediately thought to be a fly, a pest, but in fact there are many different flies, there are about 3,000 kinds of flies known around the world, some flies are not only not pests, but also protected animals, such as this fly with a pair of strange eyes - the eye fly, which belongs to the three protected animals of the country.

First, the population of the eye-catching fly
The biggest difference between the protrusion fly and other flies is that it has a pair of strange eyes, which can easily be mistaken for the antennae on the head, in fact, these are two long eye stalks, which are 1.5 times longer than its own length, and the eyes are on the two long stalks protruding from the head.
The population of the trolles is mainly distributed in the humid tropical regions of the eastern hemisphere, and the known phylloscopes contain about 100 species of organisms, equivalent to other large fly populations, which is relatively small. The population of protruding flies distributed in China mainly includes Chinese trolles and concave flex ocular flies, of which the Chinese trolles are endemic to Yunnan, China, and the distribution range is also very narrow, and has been included in the list of three protected animals in the country.
Second, the special role of the eye stalk of the protruding eye fly
In flies, they react very quickly because their compound eyes are well developed and easy to observe around them, while the long stalk of the eye fly gives them a wider range of observation. In fact, it is not, the range that can be seen in the forebelly of the trolles can reach more than 135 °, which is smaller than the observation range of other flies, and such a long eye handle will slow down its reaction speed, because the distance between the eyes and the brain is too far, and the time for the image to be transmitted through the nerves is naturally longer than that of other insects.
In the population of protoglossophyllum, the eye handle is the symbol of their population, and the male trolla with the longer the eye handle is more likely to win in the same competition and attract the favor of the female trolla, so the special effect, although not conducive to their reaction speed, is conducive to the breeding of the population.
Third, the recipe of the eye-catching fly
Among flies, especially flies, the most repulsive is that they are a pest because they eat scavengers, suck blood, contaminate food, infectious bacteria, etc., while the eye-catching fly can be said to be harmless to humans and animals, they are far away from the human world, feeding on plants, etc., especially in rotten vegetation, looking for food.
The twig is a strange insect, not only the eyes are strange, the behavior is also strange, because such a long eye handle is neither good at observing nor used for hunting, which should be a skill that will be eliminated, but in order to attract the favor of the female troll eye fly, it has become a symbol of the population, perhaps for this reason, so that the population of the troll fly is not as large as other flies, the number is relatively small, or included in the animal protection list, and in order to survive, they will generally hide in smelly plants or rotting plants, with the help of odor and other cover- Better dodge predators.
Pay attention to the six dimensions of nature And let nature know nature!