Ecologists have discovered the secret weapon used by certain acacia trees to defend themselves against ravenous elephants: ants. The finding could one day help conservationists protect vulnerable ...

It was the only Acacia tree for 250 miles ... "It's a new kind of collaborative art. The lighting depends on the vision of the particular animator's code," said Alexander Green, co-lead artist ...

They may not have saved a century-old dying acacia tree, but a team of scientists ... To Co, reviving the tree into an art form will serve as a lasting “reminder” for Tanay residents ...

See About archive blog posts. Three men in neon-colored hard hats push the blade through a black acacia tree trunk, slicing it into three 1/2-inch-thick slabs and exposing stunning lines and swirls.

There used to be many more acacia trees. Twenty years ago, the savannah was covered with them. These trees provided food and shelter for native acacia ants and in turn, the ants defended the trees ...

In Central America, ants act as bodyguards for acacia trees, defending them from weeds and hungry animals in exchange for room and board, one of the most iconic alliances in nature. (See "Ant ...