Question

Covering of feathers in birds​

Answer 1

Answer:

Feathers are epidermal growths that form a distinctive outer covering, or plumage, on dinosaurs, both avian (bird) and some non-avian (non-bird) and possibly other archosauromorphs. ... Although feathers cover most of the bird's body, they arise only from certain well-defined tracts on the skin.

Answer 2

Explanation:

Feathers are epidermal growths that form a distinctive outer covering, or plumage, on dinosaurs, both avian (bird) and some non-avian (non-bird) and possibly other archosauromorphs.

The bodies of birds are covered with specialized structures known as feathers that grow out of the skin. No other animal has them. Feathers act as a barrier against water and heat loss, are light but very strong, and provide a smooth, flat surface for pushing against the air during flight.

The parts of a feather you can see with the unaided eye are the rachis, vane, afterfeather, barbs, downy barbs and the hollow shaft. There are also tiny parts called barbules and hooklets that help hold the barbs together and give the feather its shape.

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