The term "wavy" or "undulating" describes a smooth, flowing motion or shape that resembles waves. This can be seen in various natural phenomena, such as the gentle rise and fall of ocean waves or the rolling hills of a landscape. In design and art, wavy lines can create a sense of movement and rhythm, adding visual interest to a composition. In biology, many organisms exhibit wavy patterns, such as the undulating movements of certain marine animals like jellyfish or eels. These movements help them navigate through water efficiently. Additionally, wavy structures can be found in plants, such as the leaves of some grasses, which may have a wavy edge that aids in water retention and sunlight capture.