Aba-Aba (Gymnarchus niloticus)
Also known as the African Knifefish or the Freshwater rat-tail the Aba-aba is a species of Osteoglossiform fish native to swamps and muddy rivers of Northern Africa. Like alot of fish of its order the aba-aba is very long and slender with adults growing up to 5 feet long. The fish only has a dorsal fin which it wriggles back and forth as its main source of propulsion. They have very poor eyesight and rely on a weak electric field to navigate their murky surroundings.