Spiders. Under the biological group of Arachnia. Phobia meaning fear. Arachnaphobia - the fear of anything under the categeory of Arachnia. Just 10 minutes ago I was called my my Mother to exterminate a spider in the bathroom. This was one big mother of a spider, about 1 inch in length. I suffer from extreme arachnaphobia and any sight of any spider *WHOSH* I am outa there. There are countless people suffer from arachnaphobia - the majority of the globe. But why? Why are we afraid of something that's so small, something that can not kill us Well, the domestic house spider in the UK can't - I know Australia is a different story. What is it about spiders that's so scary that when we see one it makes us want to gouge our eyeballs out with spoons and run for the hills? Appologies if this is in the incorrect forum.