Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces.This switch in function is an example of ______.
A) paedomorphosis
B) punctuated equilibrium
C) convergent evolution
D) an exaptation

Question

Quizplus · Accepted Answer

The switch in feather function from insulation to aiding in flight is an example of an exaptation, which is a structure or behavior that evolved in one context but became beneficial in a different context.

Feathers in Birds Appear to Have First Evolved for Insulation