A harpoon gun is a specialized weapon designed to launch a harpoon, which is a long spear-like projectile, into marine animals such as whales or fish. These guns are commonly used in commercial whaling and fishing industries, allowing for greater distance and accuracy when targeting large sea creatures. Harpoon guns can be powered by various mechanisms, including compressed air or gunpowder. The harpoon is typically attached to a line, enabling the hunter to retrieve the catch after it has been struck. This tool has a significant historical role in whaling and fishing practices around the world.