There has been a persistent rumor circulating for some time that the daddy long legs spider is the most poisonous in the world but cannot kill humans because its fangs are too small. Where this rumor started no one knows, but one thing is for sure, the daddy long legs is certainly not the most poisonous spider in the world. If you’re going to be careful around spiders, we would advise keeping your eyes open for the brown recluse or the funnel web spider.