Marine sanctuaries are protected areas in oceans and coastal regions designed to conserve marine life and habitats. These sanctuaries help preserve biodiversity by providing safe environments for various species, including fish, corals, and marine mammals. They often restrict activities like fishing, mining, and pollution to maintain the health of the ecosystem. In addition to protecting wildlife, marine sanctuaries also support scientific research and education. They serve as valuable sites for studying marine ecosystems and understanding the impacts of human activities. By promoting sustainable practices, these areas contribute to the long-term health of our oceans and the well-being of communities that rely on them.