Assertion: grasshopper's organ | /r/HasProperty | called tympanum
Facets:
Source sentences:
text: The first segment contains an organ called tympanum which enables the insect to hear.
text: Tettigoniids are distinguished by having the hearing organs (tympanum) located on the front legs, hairlike antennae that are as long as or longer in length than the body, a sword-shaped ovipositor (in females) for laying eggs, and wing covers that differ in shape.
text: They sense sound with an organ known as tympanum which is present in their knees.
text: They have no ears, but they do hear with an organ called tympanum.
text: Grasshoppers hear with an organ called tympanum.