Assertion: piranha's behavior | /r/ObjectUse | used for cooperative hunting
Facets:
Source sentences:
text: Although it has been presumed that piranhas engage in pack-hunting behavior, no investigation shows that shoaling behavior among piranhas is used for cooperative hunting.
text: Although it has been presumed that piranhas engage in pack-hunting behavior, no investigation shows that shoaling behavior among piranhas is used for cooperative hunting.