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Collection de plumes d'oiseaux colorés
Colourful Birds Feathers Collection
Feathers are epidermal growths that form the distinctive outer covering, or plumage, on birds and other, extinct species of dinosaurs. They are considered the most complex integumentary structures found in vertebrates and a premier example of a complex evolutionary novelty. They are among the characteristics that distinguish the extant birds from other living groups.
Although feathers cover most parts of the body of birds, they arise only from certain well-defined tracts on the skin. They aid in flight, thermal insulation, and waterproofing. In addition, coloration helps in communication and protection. Plumology (or plumage science) is the name for the science that is associated with the study of feathers.
Types of feathers:
Bird feathers are amazingly complex. Each feather is made from the protein Keratin. While keratin also makes up snake and lizard scales, it is a slightly different compound in birds. The three main types of feathers are the filoplumes (sensory feathers), the contour feathers, and the down feathers (insulation).
One of the reasons bird feathers are so complex is that each feather is made up of many different parts. The feather is similar in many ways to a palm frond. The rachis (same as in palms) is the central core. The area that the feather attaches to the bird is called the calamus. The rachis has barbs that extend from it, which collectively make up the vane. If you’ve picked up a feather you’ll notice that at the bottom there are several ‘non-flat’ parts that are called the pennaceous section.
Along the feather, each barb has a shaft called a ramus. From each side of the ramus are barbules and barbicels. In essence they act like modern day Velcro. One side can hook onto the other and keep the wing stiff. As a kid I’m sure everyone has run their fingers the wrong way down a bird feather and separated them. Birds can ‘zip-up’ their feathers by running them the other way and in essence, re-hooking the barbules and barbicels.
Colourful Birds Feathers Collection contains wallpapers and pictures which you can save and also share through various social media platforms. It’s very easy to use and has user friendly UI.
Colourful Birds Feathers Collection allows you to set wallpapers on your phone. Colourful Birds Feathers Collection allows user to save, share, set wallpaper (Home screen & Lock screen both) and wish everyone through Colourful Birds Feathers Collection.
You can save and share on Whatsapp, Hike, Telegram, WeChat, JioChat, Facebook, Instagram, BBM, Viber, Line, LinkedIn, Messenger, Twitter, Pinterest, Allo, Snapchat, , Tango, IMO and many other social networking apps.
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Last updated on Nov 30, 2018
Minor bug fixes and improvements. Install or update to the newest version to check it out!
Nécessite Android
4.1 and up
Catégories
Signaler
Colourful Birds Feathers Collection
1.0 by OneWorld Apps
Nov 30, 2018