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Raven Wallpaper

價格:免費

更新日期:2019-05-17

檔案大小:5.8M

目前版本:3.0

版本需求:Android 4.0 以上版本

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Raven Wallpaper(圖1)-速報App

Beautiful Raven Wallpaper Graphics HD Backgrounds Free!

Raven Wallpaper(圖2)-速報App

Raven the type species of the genus Corvus described by the Swedish physician and naturalist Carl Lina in his seminal work Systema Naturae. As generic and species names are taken from the names of birds in ancient sources first from the Latin corvus. The closest relatives of birds are considered a desert burogolovy and piebald Ravens and American Chihuahuan Raven.

Raven Wallpaper(圖3)-速報App

Ornithologists isolated from 8 subspecies of bird but in spite of the enormous spread region phenotypic differences between them are small and often explained clinal variation rather than genetic characteristics. In particular, the difference in body length in some cases correspond to the rule of Bergman the cooler the climate the larger living in it specimens. In addition to overall size the variability is also seen in the beak proportions the degree of development of elongated feathers on the neck and color tones empennage.

Raven Wallpaper(圖4)-速報App

On the other hand a similar morphology is not always indicative of the genetic identity American molecular biologists conducted a study of birds tissue samples from around the world singled out a special 2000 California put Crow in which the sequence of the mitochondrial genome of more than 4% different from the same sequence at all other birds. In this case, the birds that live in the western US looks no different from birds living in the east and north of the country. Moreover, the ravens of Minnesota Maine and Alaska a relative were significantly closer to the crows of Eurasia to the crows than neighboring California.

Raven Wallpaper(圖5)-速報App

He knows how good move on the ground. Before you embark on a wing of the raven takes a few jumps. Flight is more like a flight of a bird of prey other than a flight of the crow family. Raven one of the few birds that can perform maneuvers similar to aircraft aerobatics controlled barrel and a half roll.

Raven Wallpaper(圖6)-速報App

Bird has patience if waiting for before making a decision may give more than any action crows will wait. His patience is calculated in minutes allowing you to demonstrate this ability at the level of primates.

Raven Wallpaper(圖7)-速報App

Also the crow has the gestures with which he attracts the attention of relatives it is taken in the beak of any object and shows other crows. At first, attention is drawn to the subject but then contact being established with himself signaled. This tactic is similar to the actions of small children who are trying to attract attention.

Raven Wallpaper(圖8)-速報App

Cool 3D Pics HD Wallpapers - Good Download Free Pictures - Raven Wallpaper Backgrounds for Mobile Phones.

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