Mental restlessness

  Some acacias in africa demonstrate some intriguing peculiarities. When a gazelle or a goat wants to eat them, they modifie their sap's chemical componants as to make it toxic. When the animal realises that the tree doesn't have the same taste, it goes to eat another one. Interestingly, the acacias are capable of emitting a perfume that is received by neighbouring acacias and that warns them immidiately of the predator's presence. In a matter of minutes, all the trees will become inedible. The herbivores will therefore walk away to an acacia that hasnt received the message yet. Back in the days, there used to be goat breeding that was kept in the same field as acacias. Consequence: Once the first acacia was touched it alerted all the others on the field, the animals didnt have any other choice but to eat the toxic leaves. This is how many herds died, poisoned, for reasons that men took a very long time to understand.

 Dont mess with these bad boys!