Evolution of aggression

Humans show aggression by baring their teeth, dogs show aggression by growling and cats, by hissing. All groups of animal show aggression in a way that makes it clear to attackers that they are agitated. How do these aggression signs evolve? Is it random or does it have to do with evolutionary factors. Let's say, for example, I wanted a human-like creature to naturally hiss as a sign of aggression, How can I achieve this?

is a duplicate

This question has been asked before and has already been answered. It should be marked as a duplicate.

Please enter the URL of the proposed duplicate in the details field below.

not constructive

This question cannot be answered in a way that is helpful to anyone. It's not possible to learn something from possible answers, except for the solution for the specific problem of the asker.

Communities

Evolution of aggression

0 comment threads

0 answers