The African Butterflyfish has substantial pectoral fins that resemble All those of a butterfly, consequently the fish’s frequent name. Once airborne, the fish fans out the fins To maximise the surface area area and literally fly! African Butterflyfish are native towards the central Congo and reduced Niger in West Africa, https://www.diigo.com/item/note/9tt3x/6b3d?k=68e0e2fd4a2adf045a706d1d1f67bb82