Natural streams are flowing bodies of water that occur in nature, typically formed by the movement of rainwater or melting snow. They can vary in size, from small brooks to larger rivers, and are essential for the ecosystem, providing habitats for various plants and animals. Streams often meander through landscapes, shaping the terrain and contributing to the water cycle. These waterways play a crucial role in maintaining water quality and supporting biodiversity. They can be home to species such as fish, frogs, and insects, and are vital for activities like fishing and recreation. Natural streams also help in flood control and groundwater recharge.