Deep-sea corals are marine organisms that thrive in the cold, dark depths of the ocean, often at depths greater than 200 meters. Unlike their shallow-water counterparts, these corals do not rely on sunlight for energy. Instead, they obtain nutrients from the surrounding water and from the organic matter that falls from above. Deep-sea corals can form large reefs and provide essential habitats for various marine species. These corals are typically slow-growing and can live for hundreds to thousands of years. They play a crucial role in the marine ecosystem by supporting biodiversity and serving as important indicators of ocean health. Research on deep-sea corals, such as those found in the Atlantic Ocean and Pacific Ocean, helps scientists understand the impacts of climate change and human activities on ocean environments.