Final answer:
The statement is false; animals contribute to erosion through activities like burrowing, grazing, and landscape alterations like dam building, affecting soil and sediment movement.
Step-by-step explanation:
The question "Animals do not contribute to natural erosion" is false. Animals can indeed contribute to erosion through various activities. For instance, when animals such as burrowing rodents dig tunnels, they disturb the soil and can increase erosion rates. Grazing animals remove vegetation that would otherwise protect the soil from erosion. Moreover, the movement of larger animals can break down soil structure and lead to enhanced erosion in the form of paths or trails that become runoff channels during rainstorms.
Additionally, animals can contribute indirectly to natural erosion through processes such as biogeomorphology. Changes made to landscapes by animals, such as beavers building dams, can alter water flow and sediment transport, leading to changes in erosion and deposition patterns. Therefore, animals, whether small or large, can indeed play a role in natural erosion processes.