Spiders are eight-legged arachnids that belong to the class Arachnida. They are found in various habitats around the world, except for extreme environments like the ocean. Spiders play a crucial role in controlling insect populations, as they are natural predators. Most spiders produce silk, which they use to create webs for trapping prey or for shelter. While some people fear spiders, many species are harmless and even beneficial to humans. Understanding these fascinating creatures can help dispel myths and promote a greater appreciation for biodiversity.