Harpoon
Imagine trying to reach for a jar on the top shelf of your kitchen cupboard without a step stool. This situation is similar to using a harpoon in marine hunting, where you need to extend your reach to catch something beyond your immediate grasp. Just like you might use a long-handled grabber to reach the jar, a harpoon extends a fisherman's reach into the water to catch fish or marine animals that are too far away to catch by hand.
Practice Version
Harpoon: A long spear-like instrument used in fishing and other marine hunting. Harpoon. In simple terms, a harpoon is a tool that is thrown or shot to catch large marine animals like whales or fish.