![]() ![]() The one downside is that owls tend to be farsighted and experience difficulty focusing on objects at close range, but sensitive bristles around their beaks make up for this a bit, giving them another way to sense objects close to their faces. All of these adaptations add up: Some owl eyes may be as much as 100 times more sensitive in low light than ours. If you've ever been out at night and seen owl eyes shining back from your flashlight beam, you no doubt noticed their reflective power, which is yet another way that owls enhance their night vision.īehind an owl eye's rod-packed retina is another layer called the tapetum lucidum, which catches any light that may have passed through the retina and bounces it back to those sensitive rods. Humans have about 20 rods for every cone, but in owls that ratio is more like 30 to one, making them exceptionally good at picking up movement even when it's dark. Like us, owls have two different types of light-sensitive cells in their retinas - rods (which detect light and movement) and cones (which distinguish color). In addition to their out-sized eyes, owl pupils dilate extremely wide to let as much light as possible hit the light-sensitive retina at the back of the eye. These translucent “third eyelids” close horizontally from the inside corner of owl eyes and are there to protect them from debris when the owl swoops in for the attack.īarn Owl. This arrangement sacrifices depth perception for a wider field of view that gives them a better chance of spotting incoming danger.Īlthough humans and owls share binocular vision, owls are equipped with an important feature that we lack: nictitating membranes. Prey animals, on the other hand, tend to have eyes situated on the sides of their heads. In fact, owls have the most forward-facing eyes of any group of birds! This provides them with acute depth perception that allows them to gauge distance to perfectly time their attacks. Where their two eyes' fields of view overlap, owls have 3-D or “binocular” vision, a trait they share with humans and the many other predatory animals. This arrangement is actually an adaptation for tracking the movements of potential prey. Owls' distinctive “wise” appearance comes from the intense stare resulting from the position of their piercing eyes, both of which are located facing forward on the front of the head, like our own. Single territory rights for trade books worldwide rights for academic books. Image for Editorial (Books, magazines and newspaper) - extended (excludes advertising)Įg:Illustrate the inside of a book or magazine with a print run of 1,000 unitsĮditorial (Books, magazines and newspaper) - extended Image for Editorial (Books, magazines and newspaper) - standard All languages.Įg: Use this image as part of a social media post.Įditorial (Books, magazines and newspaper) - standard Web display, social media, apps or blogs. Image for Corporate website or social media Personal presentation use or non-commercial, non-public use within a company or organization only. Put this image on a mug as a present for someone. ![]() Not for commercial use, not for public display, not for resale.Įg: For use in an internal Powerpoint presentation at work. Personal Prints, Cards, Gifts, Slide Presentations, Reference. Image for Personal products and non-commercial presentations Personal products and non-commercial presentations
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