THE WALLACE LINE
The Wallace Line is an imaginary line that intersects the Lombok Strait between the Indonesian islands of Bali and Lombok to the south, and extends north through the Makassar Strait between Kalimantan (Borneo) and Sulawesi. Wallace’s Line is not a static boundary—it has shifted over time due to the interplay of geological transformations and climate change. As sea levels fluctuate, land bridges appeared and disappeared, offering brief windows for species migration. The two regions are different continental plates that have been moving independently — the Asian and Australian plates. On the shoreline of Bali and its eastern part. Across the water channel, there is island of Lombok. There is a narrow 21-mile-wide stretch of ocean, known as the Lombok Strait, separates these two islands. In 1858, British naturalist Alfred Russel Wallace wrote Charles Darwin a letter , from the Malay Archipelago. He had spent years documenting species across the region. The natural w...