Whether you’re out in the wilderness or in your home, you’re never that far away from a spider. However, there are so many different spider species, approximately 40,000 world wide, that it’s hard to figure out which ones you need to worry about and which ones are harmless. The rankings are based on how common the spider is, how aggressive it is and how deadly its venom is to humans.
1. Brazilian Wandering Spider
The Brazilian Wandering Spider is a large brown spider similar to North American Wolf Spiders, but bigger and possessing a more toxic venom. It has the most neurologically active venom of all spiders, and is regarded as the most dangerous spider in the world. Brazilian Wandering Spiders are active hunters and travel a lot. They tend to crawl into cozy, comfortable places for the night and sometimes crawl into fruits and flowers that humans consume and cultivate. If the spider has a reason to be alarmed, it will bite in order to protect itself, but unless startled or aggravated, most bites will be delivered dry (i.e. without venom).