Assertion: porcupine's hair | /r/Synonym | quill
Facets:
Source sentences:
text: It is covered in multiple layers of modified hair called quills, with longer, thinner quills covering a layer of shorter, thicker ones.
text: Porcupines’ back, sides, and tail are covered with thousands of stiff, needle-like, finely barbed hairs (quills) for defense.
text: Up to 30,000 modified hairs called quills cover most of their their body and tail.
text: It is covered in multiple layers of modified hair called quills, with longer, thinner quills covering a layer of shorter, thicker ones.
text: Porcupines’ back, sides, and tail are covered with thousands of stiff, needle-like, finely barbed hairs (quills) for defense.