Why do bats revolve around people, and how do bats become?

There are several possible reasons why bats circle a person:

Especially at night, bats will track their prey through sonar positioning. This rotational behavior may be interpreted as they are scanning their surroundings and looking for prey when they are in close proximity to humans.

2.Detect reflected sound waves: Bats have ultrasonic emission and echolocation capabilities, and as they rotate around you, they may be able to detect the environment and locate prey by reflecting sound waves.

This detection method can help bats determine where they are from their prey, as well as the type and quality of the prey.

3.Insect attraction: Some species of bats may be attracted to insects. When they swirl around you, it may be because there are insects on or around you that attract them.

4.Interference from echolocation systems: Sometimes, bats may fly around human settlements or buildings because their echolocation system is disturbed.

This interference can be caused by reflected sound waves from buildings or equipment, which makes it impossible for bats to accurately determine their location.

5.Exploring New Territories: Bats may approach humans as they search for new territories. While looking for a suitable place to build a nest or in search of food, they may rotate around you to assess your location and whether they have the potential to become their prey.

While bats rotating around humans are not necessarily dangerous, caution is still required when coming into contact with bats. Especially for those varieties that may carry the virus (such as the new coronavirus), we should maintain proper distancing and pay attention to personal hygiene.

Because there are often mosquitoes around the top of people's heads.

Bats sleep during the day and come out at night to forage for food and eat mosquitoes. If there is a mosquito, it will fly there.

Bats have eyes and are mammals. The mouth can emit sound waves, and the sound waves touch something** After the bat ears are transmitted, the bat can distinguish what the sound wave touches, the sound wave is the speed of sound, the bat's recognition speed and reaction are very fast, and the bat will fly over and eat it if it is a mosquito. Bats can eat many, many mosquitoes in their lifetime.

In addition, the bat has a 'channel' habit - the last time it flew safely from ** (position), then the next time it flies back, it will fly back from there.

Because there are many mosquitoes around people, and bats are foraging.

The wings of bats evolved from their forelimbs in the process of evolution, and are composed of ** (wing membranes) connected between their slender claws; The snout of bats resembles that of a rodent or a fox. The outer ear protrudes forward, is large, and is very flexible in movement. Bats have short necks, broad thorax and shoulders, well-developed breasts, and slender hips and legs.

With the exception of the wing membrane, bats are covered in hairs all over their bodies and have different shades of gray, brownish-yellow, brown, or black on their backs, while their ventral sides are lighter in color.

A bat is capable of flying like a bird, but it is not a bird, but a mammal. The metacarpal bones and phalanges of the forelimbs of bats are particularly long, and there are thin, soft wing membranes from the ends of the phalanges to the hind limbs and tails. So, bats can fly in the air like birds.

There are claws at the ends, and when they are resting, they use their claws to hook on branches, eaves, stone crevices, etc., and sleep upside down. They are nocturnal and begin to forage at dusk. The colony habitat of bats and the habits of the east, all, in the summer nights, are more common.

Bats are known as "living radars". He has a small impeller on his mouth, and there are very complex ** folds around his nostrils. This is a peculiar ultrasound device.

It emits high-frequency ultrasound waves continuously. When the ultrasound waves hit an obstacle, they reflect back and become an echo, which is picked up by the bat's ears. Based on the echo, bats can determine the direction, identify objects and live obstacles, and capture or avoid mailboxes.

There are many types of bats, as long as they are divided into two categories, one is the large fruit-eating species, and the other is the small insectivores.

Something you don't know about bats.

1 Some bats can fly at speeds of more than 50 kilometers per hour.

2 Some bats can fish, and the Mexican rabbit-lipped bat can catch more than 30 small fish in one night.

3 The wings of the pig-nosed bat are only 14 centimeters, and the wings of the flying fox, which is as large as a puppy, are up to 2 meters wide.

4 Bats can capture and resolve 250 echoes in 1 second. (Note: Sonic round trips are counted as one group at a time.) )

5 Beginning in the fall, bats accumulate a layer of fat in their lower abdomen, and by the time they hibernate they have more than doubled their weight in the summer.

6 A 20-gram insectivorous bat can eat kilograms of insects in a year.

7 A bat colony is made up of 100 bats.

8 Bats have good eyesight and do not deteriorate. It emits sound waves from the mouth that are 20,000 hertz higher, called "ultrasound", which cannot be heard by humans. When the ultrasound hits an obstacle, it bounces back and travels to the bat's sensitive ears.

Bats use their brains to determine whether to eat or flee by judging the appearance of obstacles.

When I was a child, my grandmother told me that when a mouse is hungry and steals oil, it becomes a flying oil rat, and the scientist uncle has found that large bats evolved from small bats, and small bats originated in the early Eocene 50 million years ago, and the evolution of bats on Earth may be related to the rapid warming of the earth 50 million years ago.

What do bats become? The superstition is that "rats steal salt from salt shakers and become 'salt bees'".

In traditional Chinese culture, bats are a symbol of good luck and happiness. We often say that the "Five Blessings (Bats) Coming to the Door" is composed of five bats, and these "Five Blessings" represent five auspicious blessings: Shoubi Nanshan, Wishing you prosperity, health and tranquility, noble morality, and good beginnings and good endings.

At the same time, bats are a great matchmaker, and if they don't spread pollen, we will lose 70% of our sweet and delicious fruits, including your favorite peaches and bananas. And, bats are the most sensitive animal ......

In general, bats do not appear alone.

Bats are social animals. Bats have strong flight capabilities and are also natural hosts to a variety of zoonotic viruses, capable of carrying dozens of viruses.

Adapted to their ability to fly and live a nocturnal life, bats also undergo a series of important changes in their physiology. Usually bats have poor vision, but their hearing is unusually developed, and they are able to fly freely and catch food with unmistakable accuracy at night or in very dim environments.

Bat (scientific name: chiroptera) is a phylum of chordates.

A group of mammals that are the only mammals that can truly fly.

In addition to the characteristics of mammals in general, there are a series of morphological characteristics adapted to flight.

The smallest is a mixed bat, weighing only grams, with a wingspan of 16 cm; Some flying foxes.

The weight can exceed kilograms, and the wingspan can reach meters. Bats are light-boned all over the body, with a higher degree of skull healing, well-developed shoulder girdles, and sternum.

It has keel-like protrusions.

Hind limbs tibia, fibula.

Degenerate. The ear shell is well developed, and often has a well-developed tragus.

or to the tragus. There are abundant sensory hairs on the wing membranes, ears, lips, etc. The colors are varied, mostly brown, gray, and black.