Abit Of A Difference Poem by Francis Duggan

There is a bit of a difference between good and great
Though in some ways to each other they does relate
And there is a bit of a difference between friend and mate
And there is also a difference between Nation and state
There is a big difference between rat and cat
And there is a big difference between bird and fruit bat
Though both of them roost on trees and both of them fly
Few other similarities to them does apply
There is a bit of a difference between rabbit and hare
Though some similarities in common they share
And there is quite a difference between a kangaroo
And a large species of parrot known as cockatoo
But in his theory of relativity Einstein did say
That all life forms does interrelate in some way.