In many birds, some or all of the feathers lack the barbules or the hooks, and the plumage has a loose, hairlike appearance. …in turn, have branches, the barbules. The barbules on the distal …

Fused to the rachis are a series of branches, or barbs; the barbs themselves are also branched and form the barbules. These barbules have minute hooks called barbicels for cross …

The meaning of BARBULE is a minute barb; especially : one of the processes that fringe the barbs of a feather.

Jul 2, 2010 · Each barb is a feather within a feather with a little shaft and little barbs of its own called barbules. When viewed as a whole the barbs are the vane. Barbules (too tiny to show …

Feb 10, 2024 · Feathers are made up of a central shaft called a rachis. Thin structures called barbs extend out from the rachis, forming the vane of the feather. The barbs have even …

Although microscopic evidence from fossil forms is scant, at some point the barbs evolved barbules, the tiny hooks that provide mechanical structure to the vanes and give them …

The barbules evolved hooks that interlock to make flat vanes as in current contour feathers. 5. The feather structure evolved asymmetry with the aerodynamic properties of modern-day flight …

Sep 14, 2024 · Birds have six different feather types that vary in shape, structure, and function. The most familiar is the contour feather. It consists of a central shaft and countless barbs that …

The bluebird's blue is called a "structural color," caused when light is scattered and reflected by tiny structures within each feather's myriad microscopic barbules. In the bluebird's case, the …

Define barbules. barbules synonyms, barbules pronunciation, barbules translation, English dictionary definition of barbules. n. Zoology A small barb or pointed projection, especially one …