[Intro]
Mmm, yeah
Mmm, yeah

[Verse 1]
People thought all animals arrived here unrelated
The world began, and then came man; all perfectly created
But then someone looked up a tree
And said "That monkey looks just like me!"
So it really was a mystery
What I'd learned in natural history
So I joined HMS Beagle
Watched the eagle and the seagull
We studied rock and plants
Flowers, trees and bees and ants
Slept on hammocks without pillows
Eating rats and armadillos
Til' I realised on reflection

[Refrain]
It's natural selection
Yeah

[Verse 2]
Natural selection means each animal evolved
To blend with its surroundings; ch-ch-changes were involved
So birds with different foods to seek
Seem to have developed different beaks
And over time they'd modified
So just the fittest of them all survived
On the Isles of Galapagos, I noted the giant tortoise
Had interesting shells, and I rode on them as well
Iguanas land and swimming, meant my new theory was winning
It all led in the direction
[Refrain]
Of natural selection

[Verse 3]
My findings met with outrage
From the ch-ch-ch-ch-Church of England, and from me
The idea that we came from ch-ch-chimps questioned my own Christianity
But it was hard to disagree
Every species' new mutation had a perfect explanation
It seems the world's inception must predate common perception
And if lack of adaptation is a fatal limitation
So each creature's imperfection over time gets a correction
Meaning animal collections grow unique means of protection
And to fail nature's inspection means immediate rejection
Which all leads to the detection

[Refrain]
Of natural selection
Natural selection