Imagine a post-apocalyptic world, in which only one man survives, burrowing himself deep into the earth's crust to avoid the blasts.

Finally plucking up the courage and physical strength to face his new world alone, the man ventures out from his underground lair to find a scorched and scarred landscape. Has anything survived?

Picking his way through the charred remains of trees, animals and human life, our hero sees a cockroach scuttling across a rock, as if even it is attempting to take in the view of this now decimated scene.

The man walks closer to the cockroach, subconsciously desperate to be close to perhaps the only other surviving life form. As he nears the insect he hears it whispering something in repetition. Getting closer still to try and decipher the cockroach's recurring mantra, all suddenly falls silent.

"What was that you said, cockroach?" the man said. "What was your message for me?"

After a long, uneasy pause, the cockroach finally replies. "I was told to give you a message to help you embrace your vastly altered life," it said, followed by another long pause. "Mid or feed courier!"

The man beamed a broad smile, before striding off on his way. It may look and feel nothing like he had ever encountered on earth before, but perhaps this new world wasn't so different after all. He was sure of that now.