Wave ripples are small, undulating patterns that form on the surface of water due to the movement of waves. These ripples occur when energy from the wind or other disturbances creates small waves that travel across the water. The size and shape of the ripples can vary based on factors like wind speed and water depth. In addition to water, wave ripples can also be found in other mediums, such as sand or soil, where they are created by similar forces. These patterns are often studied in fields like geology and oceanography to understand sediment transport and the effects of weather on landscapes.