The Golden Eagle
Bird's Eye
Now that we learned about the human eye, what is it that makes a Golden Eagle's eye so much more special? Why does the term “eagle eye” refer to sharp vision? Eagles see things such as prey, from miles away. So lets start talking about the structures that gives the eagle its sharp vision
The eagle's eye is one of the strongest in the animal kindom, due to the fact that they can spot its prey from 2 miles away.Even though it is stronger than the human eye, it is very similiar to it. Just like the human’s eye, the golden eagle’s eye contains a circular pupil, sclera, iris, cornea and etc. Thus causing the eagle’s eye to be very similar to human’s. But what really sets them apart is the Pecten, a unique structure that is only available to birds, its function is to help enhance and improve the retina, by nourishing it. Another benefit that the eagles have that humans don't, is that there retina is densely coated with more cones and rods (they have more cones and rods than humans), allowing them to see in a higher resolution than we do,thus they can see details that humans can’t, which helps them in locating their prey from great distance.Their retina can also process information faster than humans do,thus alowing them to react faster than humans. Eagles also have a second fovea(in each eye), which also sharpens their vision/eyesight,meaning that Eagles have two fovea’s in each eye, which means they have 4 fovea's in total. The Deep fovea and the shallow fovea, The Deep fovea allows the the line of sight to be 45 degrees on both sides(left or right), while the line of sight for the shallow fovea is 15 degress on both sides.Another cool thing about eagles is that their eyes are on the sides of his head causing the eagle to have a bigger field of vision than humans. Eagles also contain two eyelids in each eye, one of them is exactly like ours and the other one is see through, which means its there but we dont notice it.
Citations
Eagle Eye. Digital image. Learner. N.p., n.d. Web. 10 Apr. 2015. <http://www.learner.org/jnorth/images/graphics/d-e/eagle_eagleeye.GIF>.
"Eagle Eye." Wikipedia. Wikimedia Foundation, n.d. Web. 12 Apr. 2015. <http://en.wikipedia.org/wiki/Eagle_eye>.
"Ezekiel 1." Pinterest. N.p., n.d. Web. 12 Apr. 2015.
"Result Filters." National Center for Biotechnology Information. U.S. National Library of Medicine, n.d. Web. 12 Apr. 2015. <http://www.ncbi.nlm.nih.gov/pubmed/11076738>.
Wolchover, By Natalie. "What If Humans Had Eagle Vision?" LiveScience. TechMedia Network, 24 Feb. 2012. Web. 12 Apr. 2015. <http://www.livescience.com/18658-humans-eagle-vision.html>.