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 helps them ambush prey, such as insects, that wander too close to their hiding spot. These spiders are typically found in warm, dry environments around the world, including parts of Australia and North America. They are not aggressive and prefer to stay hidden in their burrows. Trapdoor spiders belong to the family Ctenizidae and are known for their robust bodies and strong fangs.