Kwi-zoology, i-cannibalism kuxa isilwanyana sizondla ngesinye isilwanyana esikwafana naso. Ukuzondla ngesilwanyana esifana kwaneso sizondlayo okanye singathi ukubonakalisa ubu-cannibalism yinto exhaphakileyo kwintlalo yendalo yezilwanyana kwaye li-1,500 lezilwanyana ezilolu hlobo eselithe lashicilelwa. Oku akwenziwa kukushokoxeka kokutya okanye yindlala, njengoko bekukholelwa njalo ngaphambili, koko kuxhaphakile phantsi kweemeko zendalo kwiintlobo ngeentlobo zezilwanyana. Cannibalism seems to be especially prevalent in aquatic communities, in which up to approximately 90% of the organisms engage in cannibalism at some point of the life cycle. Cannibalism is also not restricted to carnivorous species, but is commonly found in herbivores and detritivores.