Galaxy DNA Song

Just remember you're a tiny little person on a planet
 In a universe expanding and immense
 That life began evolving and dissolving and resolving
 In the deep primordial oceans by the hydrothermal vents
 Our earth which had its birth almost five billion years ago
 From out of a collapsing cloud of gas
 Grew life which was quite new
 And eventually led to you
 In only three point five billion years or less.
 Deoxyribonucleic acid helps us replicate
 And randomly mutate from day to day.
 We left the seas and climbed the trees
 And our biologies
 Continued to evolve through DNA.
 We're 98.9 per cent the same as chimpanzees
 Whose trees we left three million years ago
 To wander swapping genes out of Africa which means
 We're related to everyone we know.
 Life is quite strange
 Life is quite weird,
 Life is really quite odd
 Life from a star is far more bizarre,
 Than an old bearded man they call God
 So gaze at the sky, and start asking why
 You're even here on this ball
 For though life is fraught
 The odds are so short
 You're lucky to be here at all...
 Standing on a planet which is spinning round a star
 One of just a billion trillion suns
 In a Universe that's ninety billion light years side to side
 Wondering where the heck it all came from.
 You've a tiny little blink of life to try and understand
 What on earth is really going on
 In biology and chemistry
 Which made you you and made me me
 But don't ask me I only wrote the song.