The eagle is a predatory bird.
The Latin word aquĭla came to Spanish as eagle . Although the concept has several uses, the most frequent is linked to the predatory bird that belongs to the accipitrid family .
Eagles are characterized by the speed they reach when flying, their very strong muscles and excellent vision . They have a beak that, at its base, is straight, but whose tip is curved and sharp. The claws and tarsi are very strong and allow them to grab large prey .
The vision of the eagle is one of the characteristics that generates the most admiration in humans about this splendid animal. For example, it is believed that if we had eyes like his, we would be able to appreciate the walk of an ant at the approximate height of a ten-story building or clearly see the facial expressions of our favorite singer while we enjoy his performance. live from the furthest location in the stadium, the one that no one chooses if they can access a better one.
The vision of the eagle
The eagle has eyes that allow it to appreciate a series of nuances and colors that are difficult for us to imagine, and it sees objects that are in its direct line of vision with a much greater definition than ours. In simple terms, it is believed that this species is capable of seeing at a distance almost five times greater than humans .
To study eagle vision, scientists have had to develop different methods, since they cannot apply the same ones that oculists have used for decades in our evaluations. One of the most common consists of the use of two screens on which a striped pattern is displayed, each with a different thickness; The eagle receives the necessary training to fly through a long tunnel and land on one of the two screens, which are at the end of it. Since only the one with the thinnest stripes has a reward, with each correct answer it is possible to assume that the eagle has been able to understand the highest definition image without problem.
William Hodos, a researcher who has dedicated several decades to the study of eagle eyes, highlights two main characteristics that distinguish them from ours: their retinas have a higher density of light-detecting cells, thanks to which they can perceive more details ( if we were talking about cameras, we could say that it has a higher pixel density); Their fovea (a small depression in which visual acuity reaches its maximum value) is deeper, and this allows them to function like a telephoto lens, with more magnifications in their field of view.
Eagles stand out for their sense of vision.
Some species
Among the best-known eagles is the golden eagle , which lives in various regions of America , Asia , Europe and Africa . When spreading its wings, the golden eagle reaches a spread of more than two meters. This animal eats everything from rabbits to foxes, including snakes and mice.
The bald eagle , which is the symbol of the American nation, can weigh about seven kilograms and live fifty years. It is a solitary bird that feeds mainly on fish.
Symbolic issues associated with the eagle
Due to its characteristics, various peoples take the eagle as a symbol of power . In this way, the animal appears in various emblems and shields of countries, sports teams and other entities.
On the other hand, when a human being proves to be cunning and sagacious, he is often referred to as an eagle. For example: «Ramiro is a business eagle: he always detects the best opportunities to invest and close commercial agreements» , «I think this boy will grow very quickly in the organization; I have been chatting with him and without a doubt he is an eagle .
A plant, a fish and several localities and marks , finally, also bear the name of eagle.