The sharpest vision in the world. A dozen facts about vision in animals
Falcon-peregrine assistant hunters
The most keen eyes in the world are those of representatives of the animal world, birds of prey. It is they who are able to see from a great height, while simultaneously tracking what is happening in front and from the side. According to experts, the most vigilant bird of prey is the peregrine falcon. He is able to spot game from a height of up to 8 kilometers. Not without reason, in the old days, hunters took birds from the falcon family as their assistants.
real falcon
Peregrine falcon (Falco peregrinus) or "real falcon" is a large representative of the falcon family, widespread on all continents except Antarctica. It feeds mainly on small and medium-sized game birds, but does not disdain small mammals and insects. Often peregrine falcons hunt in pairs, diving for prey in turn. It is interesting to note that the peregrine falcon is not only the most vigilant, but also the fastest diving bird in the world. During an attack, its speed can reach 90 m/s (over 320 km/h).
Cause of acute vision
The reason for the sharp vision of a falcon is in the special structure of the eyeballs. The lens of a bird of prey is surrounded by a special ring of bone plate, which allows you to quickly focus your vision on objects located at a great distance. Special eye muscles squeeze the ring and, accordingly, change the curvature of the lens. Thanks to this, the falcon can instantly focus on the game, which is far below. In addition, there are two "yellow spots" in the eye of birds of prey, which are responsible for visual acuity. By the way, a person has only one such spot. The second yellow spot is able to magnify the object that the bird is looking at, creating the effect of binoculars.
Since the peregrine falcon is able to develop tremendous speed, falling like a stone towards its prey, it is extremely important for him not to lose sight of it even for a moment. The ability to see clearly at different distances, and therefore quickly react to the movements of the game and adjust its flight, is the main condition for the survival of a bird of prey.
Elena Ozerova, Samogo.Net
Cats are typical nocturnal predators. For fruitful hunting, they need to use all their senses as much as possible. The "calling card" of all cats without exception is their unique night vision. The cat's pupil can expand up to 14 mm, letting a huge beam of light into the eye. This allows them to see perfectly in the dark. In addition, the cat's eye, like the moon, reflects light: this explains the glow of the cat's eyes in the dark.
All-seeing dove
Pigeons have an amazing feature in visual perception the surrounding world. Their viewing angle is 340o. These birds see objects located at a much greater distance than a person sees them. That is why, at the end of the 20th century, the US Coast Guard used pigeons in search and rescue operations. Sharp pigeon vision allows these birds to perfectly distinguish objects at a distance of 3 km. Since perfect vision is the prerogative of mainly predators, pigeons are one of the most vigilant peaceful birds on the planet.
Falcon vision is the most vigilant in the world!
The most vigilant animal in the world is the bird of prey, the falcon. These feathered creatures can track small mammals (voles, mice, ground squirrels) from great heights and simultaneously see everything that happens on their sides and front. According to experts, the most vigilant bird in the world is the peregrine falcon, capable of spotting a small vole from a height of up to 8 km!
The fish don't miss either!
Among fish with excellent eyesight, the inhabitants of the depths are especially distinguished. These are sharks, and moray eels, and sea devils. They are able to see in pitch darkness. This is because the density of rod placement in the retina in such fish reaches 25 million/sq.mm. And this is 100 times more than in humans.
horse vision
Horses see the world around them with peripheral vision because their eyes are located on the sides of their heads. However, this does not prevent horses from having a viewing angle of 350 degrees. If the horse raises its head up, then its vision will approach spherical.
high speed flies
Flies have been proven to have the fastest visual response in the world. Besides, flies see five times faster than a human: They have a frame rate of 300 fpm, while a human only has 24 fpm. Scientists from Cambridge claim that the photoreceptors on the retina of fly eyes can contract physically.
Most better eyesight of all living creatures in eagles. They are able to see a hare from a height of 3 km.
Eagles have two pairs of eyelids that protect their unusually sharp eyesight. They use one pair when they are sitting still or on the ground. However, it is enough for them to fly into the air, as the second eyelids, or, more precisely, transparent blinking membranes, immediately fall on their sovereign eyes. Their task is to protect the eyes of the bird not only from the pressure of the air (when the eagle dives at great speed), but also to cover them from the branches of trees or shrubs, or from the prey itself. The sun can also create problems, especially at the heights reached by large birds of prey. Said membrane covers the eyes to keep them clear and unclouded.
Eagles have excellent eyesight.
They are characterized by both a wide field of vision and binocularity, that is, stereoscopic perception with two eyes. A bird, hovering hundreds of meters above the ground, is able to notice the movement of a tiny field mouse. The accommodation of vision in the eagle is very fast and precise both in terms of depth and sharpness. Its eyesight is so sensitive that the bird is able to search an area of 5 square miles (13 km2) with great care. The width of the eagle's field of view is 275 degrees. This allows him not only to observe what is happening from his side, but also to notice when someone is approaching from behind. At the time of the birth of an eagle chick, its eyes are far from being developed so strongly, and the vision of this magnificent hunter reaches perfection only as it matures and grows up.
The eagle is able to easily identify potential prey from a distance of one and a half to two kilometers, and by additionally moving its head, it can almost double this distance.
Ability to recruit great height benefits the eagle in two ways. Firstly, this allows him to notice a thunderstorm, storm and danger from a distance, and secondly, to see prey and a source of food. Birds such as crows or wild turkeys rarely fly high and have a limited field of view. The same is true with us.
Eagles distinguish colors - unusual phenomenon in the natural world. Moreover, in reality, they perceive color shades much more clearly than humans, due to which they better perceive the beauty of the earth. Eagle eyes are also characterized by one more feature: inside eyeball there is something like a comb that acts like a gyroscope, allowing extremely precise navigation. The eyes of the eagle are placed far apart on the sides of the head, which allows him to feel the depth of space - to determine the height and distance. When a bird dives at a speed of 100 km / h, it must quickly and accurately estimate the distance to the ground - otherwise it will not escape trouble.
We all know how important our eyes are. We receive most of the information, experiences and memories through the eyes. And, of course, we can enjoy the exceptional creations of nature that surround us. Some animals also have incredible or even more amazing eyes than humans. Here are the Top 10 Most Amazing Eyes in the Animal Kingdom.
The frog's large eyes are remarkable from several angles. First of all, this amphibian spends a decent amount of time in the water. To swim in water filled with debris, frogs have three eyelids - two transparent and one translucent eyelid. This translucent membrane can close completely to allow the frog to protect its eyes underwater.
The position of the frog's eyes also gives it a better field of view. The eyes are located on the sides of the head to get full review 360 degrees. Frogs can even see what's going on outside when they dive into the water.
is a small primate found in the forests of Southeast Asia. Its most striking feature is its large eyes, which are up to 1.6 cm in diameter. Compared to body size, these are the largest eyes of any mammal in the world. Just like an owl's, the tarsier's eyes cannot move. Because they are fixed in the skull.
Instead, tarsiers can move their heads 180 degrees to the left and right. This helps them to know what is going on around them. They are nocturnal animals that only become active at night. But their large eyes give them excellent night vision. In addition, they have an acute sense of hearing. Both of these qualities help tarsiers locate prey in low light conditions.
The hammerhead shark has one of the strangest yet interesting heads, a flattened hammerhead with wide-set eyes. But research has shown that this strange head has a good purpose. It provides the hammerhead shark with much better vision than other shark species. More precisely, such widely spaced eyes give them excellent vision and exceptional depth perception.
The cuttlefish is an incredible sea creature that can change its color instantly. This allows cuttlefish to quickly hide from predators by mingling with environment. This wonderful power of cuttlefish is the help of specialized skin cells and their incredible vision. They have strange "w" shaped pupils that give them a wider range of vision. Interestingly, they can even see what is behind them.
In addition, they can detect polarized light with incredible accuracy. Even slightest change angle of polarized light. This gives the cuttlefish a clear idea of what exactly is going on around them.
Do the rectangular pupils of a goat seem strange to you? But at the same time, they provide impressive vision. For a grazing animal such as a goat, this is the most sought after strength.
Because, having good eyesight, a goat has a better chance of escaping from a predator. Its rectangular pupils provide detailed panoramic vision. This helps the goat detect danger from a distance. In addition, effective eye rotation also helps to detect strange movements in the field, even while grazing. Thus, they have enough time to escape from a predatory animal.
1500 live in warm climate regions of the world various kinds geckos. Most of them are nocturnal animals. To adapt to this lifestyle, they have impressive eyesight. To be precise, their eyes are 350 times more sensitive than human vision and threshold color vision. Geckos can even see colors in low light with amazing quality. This is a rare power in the animal kingdom.
One of the amazing things about dragonflies is their large globular eyes. Each eye of a dragonfly is made of 30,000 facets and is located in different directions. The result is incredible 360-degree vision. This allows them to detect even the slightest movement in their surroundings.
Dragonflies can also detect ultraviolet and polarized light, which are outside of our visual spectrum. All these qualities play a huge role in the navigation of dragonflies.
Owls have very interesting, large front eyes. This positioning of the eyes is of great advantage to owls - an incredible binocular vision or the ability to see an object with both eyes with greater depth perception. Even animals and birds that have eyes on the sides of their heads do not have such excellent vision.
Surprisingly, instead of eyeballs, the owl's eyes are tube-shaped. Also, their eyes cannot rotate like ours. But they can move their head 270 degrees in the left and right directions. In this way, owls get a much wider vision. To adapt to their nocturnal lifestyle, owls also have excellent night vision, which brings millions of light-sensitive retinal rods.
Chameleons are so famous for their ability to change colors. But their visual system is just as amazing as their ability to change color. These reptiles can move their eyes independently. That is, they can focus on two different objects in two different directions at the same time. This incredible chameleon eye power provides superior 360-degree vision. Chameleons can also focus on objects with incredible speed.
The mantis shrimp has the most fantastic visual system in the animal kingdom. We humans have three color receptors. But this unusual crustacean has 12 different color receptors. These mantis shrimp see so many colors we can't even comprehend.
Beautiful eyes can also turn independently from each other in different directions at the same time. Eye rotation capacity is measured up to 70 degrees. This provides a wider vision of this little creature. In addition, the mantis shrimp, like other animals with exceptional vision, can detect infrared, ultraviolet, and polarized light.
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There are many animals that can be proud of their eyesight.
Cats see objects in near-total darkness, flies see 300 frames per second, and cockroaches see movement as little as 0.0002 millimeters away.
But the one with the best eyesight in the world soars majestically in the sky. This is an eagle that sees food on the ground from a height of 3 km. He finds food even under water and under snow. From a height, an eagle easily recognizes an approaching storm and any other threat. No wonder the nickname "Eagle Eye" from ancient times was given to the most accurate and vigilant warriors.
Protecting the keenest eye
Eagles have two pairs of transparent eyelids. They use one pair while they are on the ground in a stationary position. The second falls on the first during the flight. Its task is to protect the sensitive eyeball from exposure to the sun, air pressure, tree branches and shrubs while hunting.
The eagle swoops towards its prey at great speed, causing its eyes to be injured or dry from the wind. Double transparent eyelids prevent this without affecting the clarity of the picture.
Peculiarities eagle vision
The gaze of an eagle covers space by 275 degrees.
The bird sees the world on both sides of you and behind you. His stereotypical vision allows him to accurately determine the shape of an object and the distance to it. That is why, soaring high in the sky, when a person can hardly see it from the ground, the eagle easily finds a mouse ten centimeters in size in the field.
With a sudden change, the exits of the eagle's eye instantly adapt. During a dive, he does not lose sight of the victim for a second. In flight, the bird is able to search an area of 13 square kilometers.
Surprisingly, the one who has the best eyesight in the world sees badly in childhood. In newly hatched eagles, the eyesight is not so developed, the chick sees exactly as much as it needs to live in a cozy nest. Only as they grow older, the eagle's eyes develop, and vision improves.
Eagles distinguish colors, which is considered a rare phenomenon for birds. Compared to humans, they perceive shades much more accurately.
Another feature is the ability to accurately navigate in space even at maximum heights. The eagle determines the height, distance and depth of space. This ability does not fail them even if necessary to dive down. Otherwise, the eagle would not have been able to overtake prey so beautifully and with lightning speed and avoid hitting the ground.
Thus, the eagle is the creature with the best eyesight in the world. He is the best hunter and navigation expert on earth.