The Black Ghost knifefish is an elongated freshwater fish that swims around by unudlating it’s long anal fin, much in the same way that some eels and brotulas do. Researchers from Northwestern University studying the motion of Black Ghost knifefish decided to build a robot model of the unusual fish. Ghostbot accurately reproduces the undulating motion of Ghost Knifefish and it has allowed the scientists to discover a jetstream motion of water that develops right underneath the fish as the undulations meet each other on the underside of the fish. Of all the fish to roboticize, we would have placed the Black Ghost Knife at the bottom of the list but the result is undeniable cool. Full video when you click on the header image.
Jake Adams has been an avid marine aquarist since the mid 90s and has worked in the retail side of the marine aquarium trade for more than ten years. He has a bachelor’s degree in Marine Science and has been the managing editor of ReefBuilders.com since 2008. Jake is interested in every facet of the marine aquarium hobby from the concepts to the technology, rare fish to exotic corals, and his interests are well documented through a very prolific career of speaking to reef clubs and marine aquarium events, and writing articles for aquarium publications across the globe. His primary interest is in corals which Jake pursues in the aquarium hobby as well as diving the coral reefs of the world.