This image has absolutely no relevance to this thread.
bear tracks, nobody /ever/ refers to people like that, because another definition for animal (which is in your very own image by the way) is this
please
Well maybe you've never heard anyone refer to a person who commits a violent/malicious act toward you, but I have. Stalin was an animal, Riddler was an animal, Hendrik Verwoerd (the man behind the implementation of South African Apartheid) was an animal, etc. There is nothing wrong with that wrong, and if anything you seem to be very concerned about that one word "animal".
I used it correctly, and in correct context. What is your problem?