What are some facts about an owl’s eye?





See,i need to do this science homework.I need to write an esaay that is about five pages.I picked an animal which is the owl.I need to write an essay about an owl''s eye.I have been researching on the net ut i can't find any information about it.I have tried wikipedia and it didn't give me enough info.does anyone know some really good sites about owl eye?or can you just say what you know?plz!anything would help. xD



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4 Responses to “What are some facts about an owl’s eye?”

  1. mlcohen says:

    not much, but I know that an owl’s eyes are fixed (can’t move)

  2. ralegor says:

    Owls’ eyes are just as good in the day as they are at night. Owls’ eyes come in three different colors. The owls that live in North America have yellow or brown eyes. European owls have orange eyes. A thin tissue called the iris covers the front of the eye and gives the eye color. In the center of the iris, there is a pupil. The pupil controls how much light gets in the eye. On sunny days the pupil shrinks to block out the sun. At night the pupil gets bigger to let more light in. The pupils let the owl hunt in the dark. Owls and people have sensitive cells in their eyes called cones and rods. Rods help dim the light, cones help them see color. Owls’ eyes have many rods but not many cones. Therefore, many owls see only black and white. Owls and people both have binocular vision. Binocular vision is when the two eyes are in front of the head and see the same thing with both eyes. Binocular vision also helps by seeing how fast an object is going, how far away it is and the size. Humans have a field of vision of 180 degrees and 120 degrees with each eye. Owls only have a 125 degree field of vision, 50 degrees with each eye. Owls can’t move their eyes around in their sockets so they must move their head. Owls have fourteen neck bones. Their neck bones let an owl turn its head 270 degrees in both directions. This is not quite a full turn. Unlike us, an owl can turn its head around to see what is sneaking up behind it. [external link] …Of all an Owl’s features, perhaps the most striking is its eyes. Large and forward facing, they may account for one to five percent of the Owl’s body weight, depending on species. The forward facing aspect of the eyes that give an Owl its “wise” appearance, also give it a wide range of “binocular” vision (seeing an object with both eyes at the same time). This means the owl can see objects in 3 dimensions (height, width, and depth), and can judge distances in a similar way to humans. The field of view for an owl is about 110 degrees, with about 70 degrees being binocular vision.An Owl’s eyes are large in order to improve their efficiency, especially under low light conditions. In fact, the eyes are so well developed, that they are not eye balls as such, but elongated tubes. They are held in place by bony structures in the skull called Sclerotic rings. For this reason, an Owl cannot “roll” or move its eyes – that is, it can only look straight ahead!The Owl more than makes up for this by being able to turn its head around, and almost upside-down. It is able to achieve this by having a long and very flexible neck, which is not always apparent, as it is hidden by feathers and the Owl’s posture. An owl’s neck has 14 vertebrae, which is twice as many as humans. This allows the owl to turn its head through a range of 270 degrees measured from a forward facing position.As most owls are active at night, their eyes must be very efficient at collecting and processing light. This starts with a large cornea (the transparent outer coating of the eye) and pupil (the opening at the centre of the eye). The pupil’s size is controlled by the iris (the coloured membrane suspended between the cornea and lens). When the pupil is larger, more light passes through the lens and onto the large retina (light sensitive tissue on which the image is formed).The retina of an owl’s eye has an abundance of light-sensitive, rod-shaped cells appropriately called “rod” cells. Although these cells are very sensitive to light and movement, they do not react well to colour. Cells that do react to colour are called “cone” cells (shaped like a cone), and an Owl’s eye possesses few of these, so most Owls see in limited colour or in monochrome.Since Owls have extraordinary night vision, it is often thought that they are blind in strong light. This is not true, because their pupils have a wide range of adjustment, allowing the right amount of light to strike the retina. Some species of Owls can actually see better than humans in bright light.To protect their eyes, Owls are equipped with 3 eyelids. They have a normal upper and lower eyelid, the upper closing when the owl blinks, and the lower closing up when the Owl is asleep. The third eyelid is called a nictitating membrane, and is a thin layer of tissue that closes diagonally across the eye, from the inside to the outside. This cleans and protects the surface of the eye. [external link] …

  3. chamisal says:

    hey me to i don’t have much information i’m working on right now let help each other please.

  4. ectromelia says:

    Writing 5 pages about owls is something but writing 5 pages on their eyes is impossible. You should just write about owls in general. [external link] … [external link] … [external link] … [external link] … [external link] …@@@@@@@@@2This is the best link, I hope that it helps you: [external link] …@@@@@@@@@@@@@@@@Try to add different kinds of owls to your essay to fill as many pages as possible.