Since we often hear elephants are endangered, what’s the issue? Due to anti-poaching and conservation efforts, there are areas where the elephant population is now greater than the environment can support. Chobe National Park is an example - it contains 50,000 elephants in an area that can sustainably support 15-16,000 elephants. The result is considerable damage to large areas of the scrub-lands. Efforts to relocate animals to areas with small populations doesn't work (expensive, and they return). Birth control efforts have failed (who would want to put a condom on an elephant? (Yes, someone actually proposed this!) Hunting is prohibited in most southern Africa countries. A solution hasn't been found yet. The herds continue to expand and the elephant population continues to grow.
Note - there are areas in Africa where elephants are endangered, but these are primarily the failed states of NE Africa where there is little or no poaching control and where they have much greater problems than their elephant populations.
My experience here in Africa has helped me realize that the issues the Discovery Channel presents as straight forward and easy to solve are not as simple as we’re lead to believe.