Considering the phylogenetic evidence that feathers evolved prior to flight,what might have been the original function of feathers?
A)Heat retention
B)Facilitating tactile sensation
C)Waterproofing
D)Shielding from sunlight
E)All of the above

Question

Quizplus · Accepted Answer

Feathers likely evolved for a combination of functions including heat retention, facilitating tactile sensation, waterproofing, and shielding from sunlight. However, flight came later as a secondary function of feathers.

Considering the Phylogenetic Evidence That Feathers Evolved Prior to Flight,what