Trapdoor spiders are a group of spiders known for their unique burrowing behavior. They create silk-lined burrows in the ground, which they cover with a camouflaged lid made of soil, plant material, or silk. This trapdoor allows them to hide from predators and ambush unsuspecting prey that comes too close. These spiders are primarily found in warm regions around the world, including parts of Australia and North America. They are generally nocturnal and rely on their excellent sense of vibration to detect movement above their burrow. Trapdoor spiders are not aggressive and prefer to stay hidden in their homes.