system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why Humans in general are so scared of Arachnids

 Why are Arachnids so terrifying to such a wide audience of people? There are many other similarly sized/ potentially similarly shaped creatures, why aren't they as feared as arachnids?
gpt
Fear is an evolutionary tool given to us in order to avoid potential threats that may harm us or cause death. the fear of Arachnids, vermins, snakes and heights for that matter are instincts rooted in (most) of us to help us survive and pass our genes. those who lacked these instincts usually had slimmer chances to pass their genes before an untimely death caused by a fascinating poisonous spider. and so the slightly more fearful and cautious has survived and passed their genes to us.