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.
afrol News - Huge diamonds found in DRC : "A Canadian mineral exploration firm, Mexivada Mining Corp, has reported the discovery of two large diamonds in its 100% controlled Malambani Permis de Recherche concession, located near Mayoko in the Democratic Republic of Congo (DRC). Mexivada described the first stone as a white, modified octahedron 7.5 milimetres in diameter while the second stone was a shiny 6 milimetre greenish-white coloured dodecahedral diamond. Each of them weighs 0.1 gram"