Earth's acoustic landscape refers to the various sounds produced by natural and human-made sources across the planet. This includes the calls of animals, the rustling of leaves, and the sounds of flowing water, as well as urban noises like traffic and construction. These sounds create a unique auditory environment that can vary greatly from one location to another. The study of Earth's acoustic landscape helps scientists understand ecosystems and the impact of human activity on wildlife. For example, bioacoustics is a field that examines how animals communicate and interact through sound, providing insights into their behavior and habitat health.