Ants known to defend certain species of Acacia trees from elephant predation deter the massive herbivores so effectively that they are impacting entire savanna ecosystems, according to a study ...

Native acacia ants are killed by the smaller invasive big-headed ants, leaving whistling-thorn trees defenseless against elephants. Credit: Pat Milligan When people talk about the interconnectedness ...

A herd of elephants hobbles past a cluster of acacia trees to a water-hole deep in Zimbabwe's vast Hwange game reserve, attracted by the drone of generators pumping water round the clock into the pool ...