Subhumans

Ok, let's start at the beginning
When fishes roamed the sea.
They swam around before anything else
In ten million years B.C.
Then one day they decided
To evolve into vertebrates.
And a few came out of the water
And got drunk to celebrate.
Soon, well when I say "soon" I mean
A couple million years
They evolved into various quadrupeds
With legs and things and ears.
And about a trillion aeons later
They went all civilized.
And built lots of bombs and council flats
That reached into the skies.
The moral of this tale, you see
We are descended from the fish.
And if we progress much further
We'll put our lives at risk.
We're starting to destroy ourselves
With pollution, war, and greed.
When food and sex and water
Is all we really need.
When "sink or swim" is the choice you get
You cannot swim forever.
You need support to keep you alive.
Us fish must swim together!