When it comes to birds of prey flying in the sky, some people may react first to fierce eagles, but in fact, owls that come out of the day and night are also good at it. Owls, also known as "owls", are owl-shaped birds of prey in two major categories of birds of prey, belonging to the nocturnal birds of prey. Another major category of birds of prey is falcons, such as the eagles that are commonly seen.
<h1 class= "pgc-h-arrow-right" >why is an owl called a rat catcher? </h1>
In fact, this is related to its body structure. Faced with cunning and vigilant mice, how did owls catch them in the dark of night?
First of all, let's introduce the owl's "big pie face", this face is not just for appreciation, because the big face of the owl can collect sound waves, and can lock the tracks of distant prey, and then it will wave its large wings and rush down in the direction of prey activity.
Some people may wonder, doesn't the sound of an owl flying down and vibrating its wings scare the cunning mouse away?
Don't worry about this, because the owl has a "shadowless hand", because the owl has a large wingspan, and there are countless and very soft feathers on the wings, but don't underestimate this small feather, which is actually very useful.
If we zoom in on the feathers and look closely, you will find that there are many jagged villi structures on the edges of a small feather. Therefore, these fluffs can dissolve the sound emitted by the owl during the beating process, and the "quiet" owl will quietly come to the little mouse's side and feast for himself.
At this time, some people may also say that the black light is blind, how can the owl see the prey? In fact, the owl is not blind, and comes with "luminous eyes".
The owl's eyes are long striped, if you compare with our human eyes, the owl's retina and pupils are much larger than humans, so the range of seeing will be much larger, and in order to better adapt to the night environment, the retinal cells on the owl's eyes are almost all more sensitive to light.
Therefore, the owl becomes a small expert mouse catcher by relying on its "shadowless hand" and "luminous eye".
<h1 class="pgc-h-arrow-right" > why can an owl's head rotate 270 degrees? </h1>
If you are lucky enough to see the owl turn its head, will you feel a chill behind your back, feel a tightness in your heart, as if you are watching a horror movie, and worry about the owl's head being broken?
But we don't have to worry, because the secret is hidden in its cervical vertebrae. Owls have a special cervical spine structure, their necks have 14 cervical vertebrae, twice as many as we humans, and the ligaments in their necks are well developed and do not break during rotation.
<h1 class= "pgc-h-arrow-right" > owl spins so much, why doesn't it feel suffocated like a human turning its head? </h1>
Although the carotid arteries, like humans, also pass through the holes in the cervical vertebrae, the two holes in our cervical vertebrae are very small in diameter, and the pores are almost filled with our blood vessels, so when we turn our heads, the blood vessels are compressed by the bone and feel uncomfortable.
But the owl is different, the diameter of the owl vertebral foramen is much larger, several times the blood vessel, so the remaining space is very large, like the air bag, when twisting there will be a buffering effect, thereby protecting the blood vessel. And what is even more powerful is that the owl has its own blood bank on the artery, which can provide oxygen to the head in time when it turns its head, so naturally there will be no phenomenon of stunting.
what is the use of <h1 class="pgc-h-arrow-right" > the "ears" on the owl's head? </h1>
Many people mistakenly think that the owl's ears are the two clusters of horn-shaped feathers that stand up on the top of the head, but in fact, this is not the owl's ears, this is just ordinary feathers. Scientists speculate that the role of the feather cluster is to hide the owl and better cover the owl, and the feather cluster can also express body language, such as when the owl is afraid, its feather cluster may fall backwards.
The real ears of owls are on both sides of the head, and the left and right ears are asymmetrical, one is slightly higher in the back of the head, and the other ear is just the opposite, which allows them to expand the sound range and better track the track of prey.
So don't think that the owl and its big eyes and furry two tufts of feathers are just for selling cuteness, people are for better survival!
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