IT would be impossible for many people to describe an African landscape without mentioning the millions of acacia thorn trees dotting the continent's plains and savannahs. It might be a game drive in ...

A type of acacia tree with an unusual growth habit -- unlike virtually all other trees -- holds particular promise for farmers in Africa as a free source of nitrogen for their soils that could last ...

Ants living in whistling-thorn acacia trees on the African savanna may weigh only 3 milligrams, but they can protect their trees from being demolished by elephants weighing a billion times more, ...

Ants in your pants? That's nothing compared with ants up your snout. And that's what elephants in the African savanna must contend with when trying to snag a meal from a certain type of acacia tree.

Video: Researchers found that keeping large grazing mammals away from acacia trees caused the cosy relationship between the trees and the ants to break down If the African savannah were to lose ...