A Trapdoor Spider built this burrow with silk, soil and plants. The lid is attached with silk. The spider makes silk trip wires around the trapdoor. The spider hides inside, keeping the trapdoor shut while it clings to the underside of the lid with its feet. If you look closely you can see the marks the spider’s feet left in the lid. When the trip wires are disturbed, the spider comes out and catches its prey.