Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds and some non-avian theropod dinosaurs. They are considered the most complex integumentary structures found in vertebrates, and indeed a premier example of a complex evolutionary novelty. They are among the characteristics that distinguish the extant Aves from other living groups. Feathers have also been noticed in those Theropoda which have been termed feathered dinosaurs. 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, waterproofing and coloration that helps in communication and protection.
Other articles related to "feather, feathers":
7,344 ft (2,238 m) in Spring Garden, California is the longest of 34 tunnels on the Feather River Route (cf ... Chilcoot Tunnel) and crosses under the drainage divide between the East Branch North Fork Feather River (north portal, 39°53′15″N 120°47′02″W / 39.8876°N 120.7840°W / 39.8876 -120.7840C ...
... Several studies of feather development in the embryos of modern birds, coupled with the distribution of feather types among various prehistoric bird ... Feather evolution was broken down into the following stages by Xu and Guo in 2009 Single filament Multiple filaments joined at their base Multiple filaments ... Foth re-interpreted stage 2 feathers as crushed or misidentified feathers of at least stage 3, and stage 5 feathers as crushed stage 6 feathers ...
... Most spellings use the Shu-feather, often twice, the feather being the representation, and feather of Maat ... the kingdom, the iconographic headdress implies her role, to the one who wears the shuti two-feather adornments ... Preceded by Shu-feather (=Maat-(Maat's feather)) shu-(šw) Shuti (two-feather adornment) (shwti-shuti) Succeeded by official-seated sheps-(šps) (ideogram-det.) Great Hypostyle Hall, Karnak Queen ...
... the song, for the Dutch group see Blue Feather (band) "Blue Feather" is a popular song written in 1909 with music by Theodore F ... In the song the singer is expressing his love for sweet Blue Feather ... The chorus is My sweet Blue Feather we'll be together In stormy weather and bright sunshine The hours are flying, my heart is crying Don't leave me sighing, Blue Feather, mine ...
... The ancient Egyptian Shuti, a two-feather adornment for crowns is part of a series of hieroglyphs for "crowns" usage as a hieroglyph is not as common as the actual crown represented in Egyptian art ... One popular use of the Shuti, two-feather crown is by the god Amun, one of his many crowns he is portrayed wearing ... The tail feathers in this crown are generally straight, and are assumed to be the tail feathers of a falcon ...
Famous quotes containing the word feather:
“I am a feather on the bright sky
I am the blue horse that runs in the plain
I am the fish that rolls, shining, in the water”
—N. Scott Momaday (b. 1934)
“This whole day have I followed in the rocks,
And you have changed and flowed from shape to shape,
First as a raven on whose ancient wings
Scarcely a feather lingered, then you seemed
A weasel moving on from stone to stone....”
—William Butler Yeats (18651939)
“I am a feather for each wind that blows.”
—William Shakespeare (15641616)