Let go life: "Weatherman" dragonflies, how much do you know about them? What kind of creatures are they?

Weather is the climate mood of nature, a series of climate changes such as rainy days, sunny days, or cloudy days. As the "weatherman" dragonflies, how well do you know them? What kind of biological species are they? What climate are they associated with?

Which behaviors of dragonflies are related to which climates?

In the form of "proverbs", we will show you the relationship between "dragonfly behavior" and "climate":

(1) The dragonfly flies low, and goes out with a "mino clothing". 

The interpretation is "when the dragonfly is flying relatively low, most of the time it is a sign that it is about to rain. When you go out, you need to bring rain-proof utensils (because of this proverb from ancient times, the 'rain-proof utensils' are written here as 'mino clothing', that is, the clothes woven from grass that the ancients used to wear on rainy days). The 'mino clothing' is somewhat similar to the "Straw Hat" we still use now, and it can also block the rain".

(2) Dragonflies are flying in groups, and it is going to rain heavily. 

The interpretation is "dragonflies are flying everywhere in swarms, indicating that it will rain in the near future".

(3) The dragonfly is high, and the sun is burning; the dragonfly is low, and the rain is fascinated. 

The interpretation is "when we see dragonflies flying in high places, the weather is generally sunny and the sun is hot; on the contrary, most of them are signs of upcoming rain".

(4) The black dragonflies are chaotic, and the weather is going to be dry. 

The interpretation is "In the case of encountering black dragonflies flying around, many situations indicate that there will be no rain for a period of time, and the weather will be a harbinger of drought".

The biological definition and appearance of dragonfly

Dragonflies were one of the first creatures to live on Earth, surviving for hundreds of millions of years, and its flying ability is very superb, known as the "flying king" title. It is a carnivorous insect that mainly feeds on mosquitoes and flies. It is an incomplete metamorphosis insects. There are also many species of it. There are about 5,000 species in the world, of which about 300 species are distributed in China. The yellowfly, the greenfly and the long-leafed nevus are the more common species of dragonflies.

The head is round, with a pair of protruding, emerald-like eyes on it (the eyesight is very good, the eyes are composed of many small eyes, there are about 28,000, and they can rotate freely), like a pair of iron tongs Its mouth is almost filled with two large protruding eyes; its body glows red gold in the sun; when its transparent wings vibrate rapidly, they look hazy like a shadow or a cloud of mist.

Are dragonflies beneficial insects or pests? The answer is yes. Dragonflies are beneficial insects. Both larvae and adults are carnivorous, and their food is pests. During the larval period, they especially like to eat the larvae of mosquitoes. According to a news report, a dragonfly larva can eat more than 3,000 mosquito larvae in a year; in the adult period, they mainly prey on "mosquitoes and flies". In addition, it will also capture pests such as "butterflies, moths, bees". According to a news report, The green dragonfly commonly known as "Qingtou Leng" can easily eat about 2,000 small aphids every day. Also, the horse-headed dragonfly can eat nearly 1,000 small flying insects a day, and they eat quickly, about 40 flies or 840 mosquitoes in an hour.

Why is it said that it is a peculiar creature that gathers many "high technologies" into one?

This has to start with the title "Flying King" that people give it. You can see that its flying speed is fast. It is understood that it can reach 50 kilometers per hour. What's more, a dragonfly commonly known as "yellow dragonfly" can It spans more than 5,000 kilometers, a distance that many large birds cannot reach.

We have developed so far, "Bionics" has given us a lot of help. "Bionics" and dragonflies, so far, we humans have invented a lot of equipment through dragonfly bionics, such as balance weights, etc., but we don't know much about dragonflies, so it still has many unsolved secrets for us.

In 2015, German scientists invented a bionic aircraft based on the flight characteristics of dragonflies, Its shape is like a large dragonfly, and its flight is controlled by remote control, and its performance is very good.

In addition, it has the most eyes among insects, and it can even see behind without turning its head. Its eyes also have a magical feature, that is, speed measurement, in order to control the flight speed to improve the success rate of predation. It is understood that its success rate of predation can reach 90% to 95%.

Don't underestimate the small size of the dragonfly, its body can hide a lot of secrets that attract scientists! As of today, there are still many secrets that have not been cracked, and many devices that are beneficial to human life have been developed based on the characteristics of dragonflies.

After reading it, do you have a deeper understanding of dragonflies?