Assertion: porcupine's quill | /r/HasProperty | modified hairs
Facets:
Source sentences:
text: Its quills, which have black and white banding so that predators can spot them from the distance, are actually modified hairs, covered with layers of hard keratin.
text: The quills of porcupines are modified hair shafts that evolved as a defense against predators.
text: These quills are modified pieces of hair covered with a thick layer of keratin.
text: The sharp stiff quills are actually modified hairs.
text: Quills are actually modified hairs and are covered with the protein keratin.
text: The sharp stiff quills are actually modified hairs.
text: These mammals have more than 30,000 quills, which are actually modified hairs.
text: Quills are just modified hairs made out of keratin, the same substance found in our own hair and fingernails.
text: Quills are modified hairs formed into sharp, barbed, hollow spines.
text: The quills are modified hairs made of keratin.
text: The quills are modified hairs, and if they fall out, they will quickly grow back.
text: The quills are modified hairs which have microscopic overlapping sheaths on the tips (functioning like barbs) are filled with a spongy matrix.
text: The quills are modified hairs which have microscopic overlapping sheaths on the tips (functioning like barbs) are filled with a spongy matrix.
text: Quills are modified hairs that have microscopic barbs on the tips and are filled with a spongy matrix.
text: Quills are modified hairs that have hollow shafts with solid tips and bases.