fish longnose gar swims in an aquarium among algae

america animal aquarium aquatic big camouflage closeup color diving esox fins fish fishes fishing freshwater gar gillbearing gray lake lepisosteidae lepisosteiformes lepisosteus long longnose luce lucius movement natural nature needle needlenose neurotoxin northern nose osseus pike predator rayfinned river scales sharp squamate swim tail the tropical underwater water wild wildlife