Crocs are cold-blooded. They are not vicious. Viciousness requires the understanding of ‘the other’ as a sentient being and then inflicting more harm on the victim than necessity requires. Although it appears, and I mean “appears”, to occur occasionally in some animal groups, humans are the only groups where it demonstrably occurs regularly with the required intent to inflict harm. Only humans have mastered the art of viciousness, the other animals haven’t. Crocs…they are just doing croc things.