In South Africa, there are 18,000 elephants spread out over 80 game parks.
But as the population continues to grow, they're leaving chaos in their wake - land is being destroyed and there's growing tension with local communities.
Haru Mutasa has been to Limpopo Province, where they're using contraception to stop a different kind of population explosion.
Sudan's governemnt has accused Darfur's largest refugee camp of harbouring rebel fighters. The Kalma camp is the only one that is permanently protected by United Nations and African Union forces, but residents fear they may be driven out as the military threatens to take action. Al Jazeera's Hoda Abdel-Hamid reports from the camp.