What Is the Function of the Barbules?

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 feathers.

What is the role of feather?

Feathers help shield birds' bodies from bruises and scrapes. Communication. Hundreds of bird species use their feathers to “talk,” especially when looking for a mate. ... A bird's feathers play an important role in regulating their body temperature, much as hair does for mammals.

What are the Barbules in a feather?

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 above): Barbules are mini-barbs that grow from the central shaft of each barb. The barbules on one side of the shaft are smooth.