Assertion: black vulture's head | /r/HasProperty | adaptation
Facets:
Source sentences:
text: They have a distinctly bald head, an adaptation that reduces the risks of disease, because bacteria might grow in feathers with blood and meat caught in between.
text: New World vultures have a distinctive bald head, an adaptation that helps reduce the risks of disease, because bacteria could become lodged in feathers, while the bald head and neck may be disinfected by the sun’s rays.