A bearded dragon is a popular pet reptile known for its unique appearance and docile nature. It has a triangular-shaped head with a spiky beard and a robust body covered in scales. Bearded dragons are native to Australia and are capable of changing their colors to regulate their body temperature. They are diurnal reptiles, meaning they are active during the day and feed primarily on insects, vegetation, and occasionally small vertebrates. With proper care and habitat, bearded dragons can live for several years in captivity.