What are feathers made of?



  1. 0 Votes

    Feathers are made of keratin. This is a protein that is also used to make horns and hair in other animals.

  2. 0 Votes

    Bird feathers evolved about 150 million years ago and provide an insulating layer to keep birds warm and also play an important role in flight. “Feathers are made of a substance called keratin, which is a kind of protein. Keratin is also present in the scales of reptiles.”

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