A cold seep is a geological feature where methane and other hydrocarbons escape from the Earth's crust into the ocean. These areas are typically found on the ocean floor and are characterized by the presence of cold, nutrient-rich water. Cold seeps support unique ecosystems that thrive in the absence of sunlight, relying on chemosynthesis instead of photosynthesis. Organisms such as chemosynthetic bacteria and tube worms are commonly found at cold seeps. These bacteria convert the methane and hydrogen sulfide released from the seep into energy, forming the base of the food chain. Cold seeps play a crucial role in the global carbon cycle and provide habitats for diverse marine life.