Barbs are a series of branches fused to the rachis (stem) of a feather
Feather
Feathers are one of the epidermal growths that form the distinctive outer covering
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Barbs are a series of branches fused to the rachis (stem) of a feather
Feather
Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds. They are considered the most complex integumentary structures found in vertebrates.... . The barbs themselves also have branches called barbule
Barbule
Barbules are a part of the tree formed by feathers : the trunk, or axis, being the rachis and the barb s the main boughs, barbules are the secondary branches.... s, which have hooks that lock the barbs together.
