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Vision is the most important sense for birds, since good eyesight is essential for safe flight. Birds have a number of adaptations which give visual acuity superior to that of other vertebrate groups; a pigeon has been described as "two eyes with wings". [ 1] Birds are theropod dinosaurs, [ 2][ 3] and the avian eye resembles that of other ...
Box office. $178.8 million [ 1 ] Eagle Eye is a 2008 American thriller film directed by D. J. Caruso from a screenplay by John Glenn, Travis Adam Wright, Hillary Seitz and Dan McDermott. The film stars Shia LaBeouf, Michelle Monaghan, Rosario Dawson, Michael Chiklis, Anthony Mackie, Billy Bob Thornton.
Some birds have a scant 10 to 20 degrees of binocular vision. Similarly, color vision and the ability to perceive shape and motion vary across the visual field; in humans color vision and form perception are concentrated in the center of the visual field, while motion perception is only slightly reduced in the periphery and thus has a relative ...
Tetrachromacy. The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [ 1] Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types ...
v. t. e. A bird's-eye viewis an elevated view of an object or location from a very steep viewing angle, creating a perspectiveas if the observer were a birdin flight looking downward. Bird's-eye views can be an aerial photograph, but also a drawing, and are often used in the making of blueprints, floor plans and maps. [1]
Barry Keoghan smiled from ear to ear as Andrea Arnold’s latest film, “Bird,” earned a seven-minute standing ovation at its Cannes Film Festival premiere on Thursday. Festival favorite Arnold ...
Compound eye. A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, [ 1] which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distinguish brightness and color. The image perceived by this arthropod eye is a ...
Three people birdwatching with binoculars. Birdwatching, or birding, is the observing of birds, either as a recreational activity or as a form of citizen science.A birdwatcher may observe by using their naked eye, by using a visual enhancement device such as binoculars or a telescope, by listening for bird sounds, [1] [2] watching public webcams, or by viewing smart bird feeder cameras.