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 ...

Evolution has forged a tight alliance between East African acacia trees and several species of ant. The ants get a home--inside modified thorns called pseudogalls--and a source of food, produced for ...

COLUMBUS, Ohio – Young umbrella acacia trees in Africa survive severe drought by putting their natural processes into overdrive when water is in short supply, prioritizing continued growth over water ...

NAIROBI, KENYA (24 August 2009)—Scientists said today at the 2nd World Congress of Agroforestry that a type of acacia tree with an unusual growth habit—unlike virtually all other trees—holds ...