Assertion: andean condor's head | /r/HasAspect | few feathers
Facets:
value: as an adaptation for hygiene
type: PURPOSE
Source sentences:
text: The head and neck, kept meticulously clean, are red to blackish-red, and have few feathers.  
text: The head and neck are red to blackish-red and have few feathers.
text: As an adaptation for hygiene, the head and neck have few feathers, exposing the skin to the sterilizing effects of dehydration and ultraviolet light at high altitudes, and are meticulously kept clean by the bird.
text: The head and neck are red to blackish-red and have few feathers.
text: The head and neck, kept meticulously clean, are red to blackish-red, and have few feathers.  
text: The head and neck are red to blackish-red and have few feathers.
text: As an adaptation for hygiene, the head and neck have few feathers (see below photo), exposing the skin to