The Mekong giant catfish is one of the largest freshwater fish in the world, native to the Mekong River basin in Southeast Asia. It can grow up to 3 meters (10 feet) long and weigh over 300 kilograms (660 pounds). This species is known for its distinctive appearance, featuring a large, flat head and a long, slender body. These fish primarily feed on plant matter and are considered a vital part of the local ecosystem. Unfortunately, the Mekong giant catfish is currently listed as critically endangered due to overfishing, habitat loss, and changes in water flow from dam construction. Conservation efforts are underway to protect this remarkable species.