Assertion: reptile's teeth | /r/HasProperty | hidden
Facets:
value: usually
type: DEGREE
Source sentences:
text: Also, the fourth tooth on either side of the lower jaw of an alligator fits into an internal socket in the upper jaw so that these teeth are hidden when the mouth is closed.
text: Usually, no lower teeth are visible when the mouth is closed.
text: Also, the fourth tooth on either side of the lower jaw of an alligator fits into an internal socket in the upper jaw so that these teeth are hidden when the mouth is closed.
text: Crocodiles have a tooth that sticks out over the upper lip when their mouths are closed, while an alligator's teeth are only visible when its mouth is open [source: San Diego Zoo ].