As you know that the white rhino horn are so worth that it cost $100,000/kg. These horn are used for symbol of statue to display success and wealth. The people of Africa, they started hunting the white rhino in order to sell the horn. And because of the greed of the money they killed thousands of the white rhinoceros where they were shrink to only 3 white rhinoceros. Soon after that the Government of Africa take the notice of the issue and gave the order to the security to save the last three rhinoceros. To avoid the extinction of the rhinoceros, but it was a late call.
The Northern White Rhino is critically endangered to the point that there are only three of these rhinos remaining in the world, all in zoos. To keep peace, several conservation tactics have been taken to prevent this species from disappearing from the earth.