Kwilizwe elinomdla le-cephalopods, ii-octopus zigqama kungekuphela nje ngobukrelekrele bazo kunye nobuchule obufana ne-chameleon, kodwa kunye nenkqubo yazo ekhethekileyo yentliziyo. Ezi zilwanyana zaselwandle zingenamqolo zineempawu ezizodwa ze-anatomical kunye ne-physiological ezenza zibe zizifundo ezinomdla ekufundeni. Omnye wemibuzo ebangela umdla malunga neengwane ngulo: zingaphi iintliziyo abanazo? Ngezantsi, siphonononga oku kunye nezinye iinyani ezinomdla malunga nezi zilwanyana zingaqhelekanga.