Why are elephants becoming extinct?

Elephants contain valuable parts such as ivory, large bones and meat. Poachers will hunt and kill elephant after elephant just to obtain these precious valuables to sell or to own. Poachers do not care that they are ruthlessly killing a beautiful species, they only seem to care about the price of money they get for the trophies that they have collected from their murders. It is illegal to poach elephants so ivory, bones and meat is usually sold on the black market. Another reason is that elephants also have dental problems because throughout their life, an elephant's teeth will wear out and then they grow new ones. But when their teeth finally wear out for good, they can no longer eat food that they require and they die of starvation. Also, a female elephant will be pregnant for two years before they actually give birth.