How does the vicuña differ from its domesticated relative, the alpaca?

Answer

The vicuña retains a wilder, more gracile form

While the alpaca was selectively bred for its fiber and often exhibits a denser, more abundant coat that covers more of its body, the vicuña maintains the wild, graceful, and slender template. The alpaca represents an exaggerated version of the fine fiber trait, whereas the vicuña is naturally evolved for high-altitude survival.

How does the vicuña differ from its domesticated relative, the alpaca?
animalphysical characteristicVicuña