Not your average garden variety. A worm that can grow as long as a person is tall. While the introduced worms brought by settlers are small and timid, native species can grow to extraordinary sizes, some reaching lengths of over a metre and thickness of a pencil. They are the heavy-duty machinery of the soil, digging deep vertical shafts that aerate the ground and allow water to penetrate, preventing erosion and feeding the roots of mighty kauri and rimu. A worm that is also an engineer. These giants are sensitive creatures. They breathe through their skin, requiring constant moisture, which is why they retreat deep underground during dry spells. They feed on organic matter, pulling leaves and decaying wood down into their burrows, effectively composting the forest from the inside out. Their castings are rich in nutrients, creating fertile pockets that seedlings rely on to survive. Without the noke, the forest floor would become a compacted, waterlogged mat, unable to support the towering trees above. Unlike the invasive species that churn the topsoil aggressively, native worms often have specific habitat requirements and slower reproduction rates. They are long-lived and slow to recover from disturbance. Ploughing a field or applying heavy chemicals can wipe out a colony that took centuries to establish. The reproductive cycle is slow. Females produce small clutches of eggs in delicate cocoons buried deep in the soil. The young hatch as tiny, pale worms and take years to reach their full size. They are the silent, subterranean architects of New Zealand. The forest floor is dark. The giant worm burrows deep, pulling leaves down into the soil, aerating the ground. It does not know it is an architect. It does not know it is keeping the kauri alive. It just wants to eat dead leaves.