Assertion: crocodile's membrane | /r/HasProperty | tympanic
Facets:
Source sentences:
text: Combined with their tympanic membranes for hearing, they are perfect trackers.
text: Crocodiles can hear well; their tympanic membranes are concealed by flat flaps that may be raised or lowered by muscles.
text: Combined with their tympanic membranes for hearing, they are perfect trackers.