Famous for its round body shape and smiling expression. Adult males can grow up to 3.5 to 5.5 meters in length and weigh 700 to 1600 kilograms, while females are smaller. Has gender dimorphism, with males having a larger body size than females. Has strong sociality, usually migrating, hunting, and interacting in groups. The calls are complex and varied, utilizing sound for echolocation, mating, and communication. Mainly distributed in Arctic and subarctic waters, feeding on fish and invertebrates. Excellent diving ability, able to dive to depths of 600 meters, even exceeding 1000 meters. The current threats include hunting, pollution, and climate change.

It is a reptile belonging to the genus Varanidae in the family Varanidae. The skin is rough, with many raised bumps, no scales, dark brown, and the mouth is filled with huge and sharp teeth. Named after the island of Komodo in Indonesia, it is also known as the Komodo dragon. Mainly inhabiting the jungles around Java Island. I like living alone and only get together during the breeding season. I have fast running speed, strong diving ability, and can climb trees. As its size increases, my claws are mainly used as weapons, which is not conducive to climbing. Carnivorous animals, most of which eat carrion. The Komodo dragon is a reptile capable of parthenogenesis. It is the largest living lizard in the world.