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Q&A 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 agi...

3 answers  ·  posted 9y ago by Uncle Tres‭  ·  last activity 9y ago by Uncle Tres‭

Question reality-check evolution creature-design