We are all used to the diagrams of human evolution, showing how man progresses until the first halve of the twentieth century.

This diagram is a little more up to date. The beginning is fairly common, showing man in his ape like form.

He then moves into a two legged walking position and begins to carry tools.

The next stage of the evolution man is walking almost upright and carrying a spear.

In the middle, man in his prime, walking fully erect, carrying a machine gun.

Now our current state, overweight, sipping a milkshake, and eating a hamburger.

Of course the final stage is the pig.