Tigers are being poached for two valuable things. They are poached for their beautiful skin and their useful bones. Scientists have found phosphorus, calcium, iron, mercury, and arsenic in tiger bones, which are all needed in medicines. They say these medicines could cure rheumatic pain, bite from rats, typhoid fever, dysentery, and other minor illnesses. Due to this, over twenty companies started selling tiger bones. As scientists found more medicines that could be made from tiger bones, the tiger population declined. Because of this crazy demand, the Bali tiger became extinct in the 1940s and the Javan tiger in the 1970s and 80s. The skin of tigers is extremely precious to poachers and can cost as much as $30,000. The sad thing is that the penalties for tiger poaching are minor. If the poacher gets caught, he or she only has to pay a fee of $140, and is sent to jail for one to six years.