Seamounts are underwater mountains formed by volcanic activity. They rise from the ocean floor but do not reach the water's surface. These geological features can vary in height and shape, and they often create unique habitats for marine life. Many seamounts are found in groups, known as seamount chains, and they play a crucial role in ocean ecosystems. They provide shelter and food for various species, including fish and invertebrates. Additionally, seamounts can influence ocean currents and nutrient distribution, making them important for global marine health.