Darwin had a rabbit,  
It's true. 
Was one of a special kind 
Of which all the Island knew. 
 
A rabbit that began as a lump of cheese 
Or something else if you please. 
Twas kneeded into a shape to disguise 
It from what would be otherwise 
A most unpleasant thing 
That would be served while the angels sing(?) . 
 
Called Welsh rarebit I suppose 
Which was a name chosen by those 
Who must scrimp and save 
So that the backbone didn't rub away 
The other side of the stomach there 
When the space was filled with air. 
 
So the Darwin family sat and admired 
That which they really didn't care. 
Hoping that Charles would bring home the bacon 
So there would be an alternative (and soon) . 
But observing scientist that he was 
He really didn't want to make a fuss 
So a boat he leaped upon 
And was soon enough, gone. 
 
Finally returning after a year and a day 
They gathered round to see what it was that he would say. 
And as they all bowed their head 
They heard the words that all might dread. 
'Thank you Lord for this humble treat. 
And next time, God, could we have just a little meat'.
Sidi J. Mahtrow
http://www.poemhunter.com/poem/darwin-s-rabbit/