Assertion: echidna's tongue | /r/HasProperty | stiffened by rapid flow of blood
Facets:
Source sentences:
text: The protruded tongue is stiffened by a rapid flow of blood, which allows it to penetrate wood and soil.
text: The protruded tongue is stiffened by the rapid flow of blood, allowing it to penetrate wood and soil.
text: The protruded tongue is stiffened by the rapid flow of blood, allowing it to penetrate wood and soil.