When an object rests on a surface, such as a table, for example, the downward force it applies to the surface is counteracted by an equal but upwards force, or reaction, applied by the surface. See more at Newton's laws of motion. A response to a stimulus, such as a reflex.
State. Aquatic Invasive Species: Snakehead (PDF | 201 KB). Indiana Department of Natural Resources. Northern Snakehead. Maryland Department of Natural Resources. Northern Snakehead Fish (Channa argus). New York Department of Environmental Conservation.
Please do not release the fish if you think that it may be a snakehead. Snakeheads have been added to the U.S. Fish and Wildlife Service's injurious wildlife list (Current Injurious Wildlife Species List ). Under this regulation, the importation into the United States and transportation across state lines are illegal .