Grenadeharpoonsareexplosivedevicesthatareattachedtoharpoons,whichareusedtohuntmarinecreaturessuchaswhalesandsharks.Theseharpoonsaredesignedtopiercethroughthethickskinofthetargetandonceattached,thegrenadeistriggered,explodingandcausingsignificantdamagetotheanimal.Theuseofgrenadeharpoonshasbeenhighlycontroversial,asitisviewedasacruelandinhumanemethodofhunting.Manycountrieshavebannedthispractice,andalternativemethodssuchasnon-lethaltaggingandtrackinghavebeendeveloped.