Revenge

In the 1970s-1980s you watch them kill your mother, your grandmother as your cries are ignored. You are left alone to grow up with teenagers who do their best to bring you up. And there is hatred in your heart. When you grow up, you will kill those who killed your family.

It sounds like a movie, it sounds hackneyed and overused, but here's the clincher. I'm talking of elephants. There is an entire generation of "teenage delinquent" elephants in Uganda who've grown up without the support structure of a herd due to excessive poaching in the 70s and 80s. Now there have been higher rates of attacks in these areas from elephants and this is the prevailing view:
The elephants are suffering from post traumatic stress and are wreaking vengeance upon human settlements. "They are certainly intelligent enough and have good enough memories to take revenge", I quote Joyce Poole, the research director at the Amboseli Elephant Research Project in Kenya.

It is chilling. These intelligent animals suffer and react just as we do. If we ever learn to understand and communicate in the future, if we ever come to the consciousness that being human is not being superior, how will we ever beg their forgiveness?