More happily, whales are protected by conservation laws that stop people from killing too many of them. Also, chemists invented many products that take the place of whale blubber, and kerosene replaced whale oil in lamps. Now, many countries have agreed not to hunt whales, because otherwise all the whales might die. They signed a treaty agreeing on this though Norway and Japan still hunt whales. Russia and the United States also practising whaling, on a much smaller scale. (Japan still does hunt often, however).