For instance, black cherry trees secrete this fluid actively three weeks during the whole year. This timing is by no means a coincidence, since this three weeks is the only period in which a kind of caterpillar called eastern tent caterpillar harms the black cherry trees. Secreting a fluid, the plant makes the ants do this which it is itself unqualified to do. Acacia trees and Ants Acacia trees grow in tropical and subtropical regions of the world and are protected by the thorny bushes. A species of ants that live in the acacia trees of African kind, opens an entrance hole for itself by gnawing the thorns and from then onwards lives in the acacia tree for all times.
Ant colonies live on one or more trees and feed on the nectar existing in the leaves of acacia.
Moreover, they eat the caterpillars and the other organisms on the tree. The nectar that exists in the trunk of the acacia is very rich in protein and fat. The only known function of the nectar is feeding the ants. The ants live on these trees, take the sugar in the nectar secreted from the tree s trunk and use it for nurturing their own larva. Living on the plant, the worker ants are quite aggressive against the other insects, even against all other living beings - regardless of their size.