While bees most likely do make up the majority of pollination in the world, there are other creatures which accomplish this task. Inspired by this post, I'm on a mission to estimate the world's spider population. In fact, 60% of all spider bites in Brazil are caused by this poisonous animal species. Many new discoveries are happening every day, and new spiders are being found all over the world. There are approximately 35,000 types of spiders that have been identified worldwide, although biologists believe there are many more that are not yet identified. From the tarantula family, they are not quite the largest spiders in the world, but they are very big with a leg span of 8 inches and enough deadly venom to kill mice, snakes and even small I tried posting this question over in /r/AskScience and got redirected here. After all, eating spiders and bugs (though spiders aren’t bugs) may be the way of the future. Hopefully someone can help me out. To make matters even worse, spiders are voracious eaters, each one consuming ten percent of its body weight in a day. While spiders most likely do make up for the majority of pest control in the world, there are other creatures which accomplish this task. These spiders are agile and pugnacious and unlike most other species, they won’t run away from combat but instead stand their ground. More than we can count as they reproduce relatively quickly. I HATE SPIDERS! Spiders are arachnids, a class of arthropods that also includes scorpions, mites, and ticks. How many species of spiders exist? They're great at bug control, but the irony is you have to stomach spiders in order to keep bug infestations at a minimum. That can make it very hard to identify what type of … The info is from the Australian Geographic magazine so you can read more upon the lovely spiders here. How Many Spiders Are There in the Whole World? : The interesting thing about pests in general is that they are all over the planet. Most large spiders … How many species of spiders exist? The article then tells me that there are 278 tons of humans on the planet, so the spiders could eat us and still have room for dessert. Some areas may have as many as 1,000 spiders per square meter. More than 43,000 different species of spiders are found in the world. I HATE SPIDERS! Did you know there are more than 40,000 species of Spiders found in the world? While spiders most likely do make up for the majority of pest control in the world, there are other creatures which accomplish this task. Because of the natural threat that many venomous arachnids pose, human beings have always had a rocky relationship with spiders. Also, they have a special name for it too. Statistics show that this is about 5% of all spiders living in the world. Why are so few spiders harmful to humans? Feeding the ever-growing human population is putting a huge strain on the world, with conventional livestock taking up more and more land and pumping more and more methane into the atmosphere, amping up climate change. However, just because they're old and important doesn't mean some of them aren't absolutely terrifying.