The ant acacia is a small, thorny tree found in different parts of Costa Rica. It is famous, not for its impressive thorns or its ability to thrive in harsh environmental conditions, but because of ...

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 ...

If the African savannah were to lose elephants, giraffes, and other large grazing mammals, there would be unexpected ecological effects all the way down to the ants and acacia trees of the plains, ...

Add Yahoo as a preferred source to see more of our stories on Google. Symbiosis: bullhorn tree (swollen-thorn acacia, Vachellia cornigera) branch and resident ants. Photo taken in Panama (Central ...

Symbiosis: bullhorn tree (swollen-thorn acacia, Vachellia cornigera) branch and resident ants. Photo taken in Panama (Central America), where these plants are known as 'cachito'.© Angel ...