The Wallace Line is an imaginary boundary that separates the ecozones of Asia and Australia. Named after the naturalist Alfred Russel Wallace, it runs between the islands of Bali and Lombok in Indonesia. This line highlights the distinct differences in flora and fauna on either side, with Asian species found to the west and Australian species to the east. The significance of the Wallace Line lies in its demonstration of how geographical barriers influence biodiversity. It helps explain why certain animals, like the orangutan and kangaroo, are found in specific regions, showcasing the impact of tectonic activity and evolution on species distribution.