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Bowfin (Dogfish) A medium-sized, greenish fish, the bowfin can be found in clear lakes and slow streams through much of Minnesota. Bowfin survive in murky, oxygen-depleted water by rising to the surface and gulping air into their air bladders. They can also survive out of water for a considerable time.
They are known as the Featherbacks, or Featherfin Knifefishes, and Knifefishes. They are found in Southeast Asia and Africa. This is a small group of knife fish, with only ten species in four genera. These fish are generally smaller fish that inhabit freshwater or brackish environments.Although they swim in a manner similar to the Gymnotiformes, they are not closely related.hese are not true knife fish, but are actually in the order Perciforms, which are the 'perches' or 'perch-like' fishes. These are the Grey knifefish Bathystethus cultratus, the Blue knifefish Labracoglossa nitida, Collared knifefish or Finscale razorfish Cymolutes torquatus, and the Jack-knifefish Equetus lanceolatus.