Osteoglossiformes is an order of fish known for their bony tongues and unique feeding habits. This group includes species like the Arowana and Butterflyfish, which are primarily found in freshwater environments. They are characterized by their elongated bodies and large, flat heads, making them easily recognizable. These fish are often carnivorous, feeding on insects, small fish, and crustaceans. Osteoglossiformes are also known for their ability to breathe air, which allows them to thrive in oxygen-poor waters. Their diverse habitats range from rivers to lakes, primarily in tropical and subtropical regions around the world.