Seed dispersal tools are natural mechanisms or structures that help plants spread their seeds away from the parent plant. These tools can include features like wings, hooks, or fleshy fruits that attract animals. For example, the dandelion has lightweight seeds with fluffy structures that allow the wind to carry them over long distances. Animals also play a crucial role in seed dispersal. Some seeds have hard coatings that can pass through an animal's digestive system, allowing them to germinate after being excreted. Fruits like berries are often eaten by birds and mammals, who then transport the seeds to new locations, promoting plant diversity and growth.