Prum and Brush describe feathers as being exapted for aerodynamic flight after feathers had already evolved for other purposes.

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Location PART 2 - FOUR HIDDEN CHIMNEYS CHAPTER 10: BUILDING-BLOCK REALITY Exaptation

"Prum and Brush describe feathers as being exapted for aerodynamic flight after feathers had already evolved for other purposes."

Prum and Brush explicitly describe feathers as exapted for aerodynamic function after earlier feather forms had evolved for other uses, directly supporting the manuscript's exaptation example.

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Source title Dinosaur Feathers Came before Birds and Flight

Source authors Richard O. Prum, Alan H. Brush

Source year 2014

Confidence high

Importance high