Deep-sea fish

Deep-sea fish are species that live in the ocean's depths, typically below 200 meters (656 feet). These fish have adapted to extreme conditions, including high pressure, low temperatures, and complete darkness. Many possess unique features, such as bioluminescence (the ability to produce light) for attracting prey or mates. Examples include the anglerfish, which uses a lighted lure, and the gulper eel, known for its large mouth. Deep-sea fish play a vital role in the marine ecosystem, contributing to nutrient cycling and serving as prey for larger animals. Their study helps us understand ocean biodiversity and ecological health.