Evolution

The elephant charged towards the poachers, raising its trunk and roaring, revenge blazing in its eyes; revenge for all the brothers and sisters, aunts and uncles they had killed.
So many tears it had wept because of the ivory hunters but now it was the turn of their families to weep.
Laughing, the poachers took aim with their high powered rifles and fired at the elephant.
But their laughter soon died away; the grins fading from their faces as they realized that their bullets weren't penetrating the elephants hide.
All those years of killing elephants with rifles had been part of the process of natural selection. It was only a matter of time before a new type of elephant was born, a bullet proof one.