Ancient harpoon points found in modern whales include two made of slate, two of stone, a triangle shaped metal blade, and one made of ivory and metal.

Ancient harpoon points found in modern whales include two made of slate, two of stone, a triangle shaped metal blade, and one made of ivory and metal.

Ancient harpoon points found in modern whales include two made of slate, two of stone, a triangle shaped metal blade, and one made of ivory and metal.