Are you a little flea or big flea?

[b]Siphonaptera[/b]
- Augustus De Morgan

Great fleas have little fleas upon their backs to bite 'em,
And little fleas have lesser fleas, and so ad infinitum.
And the great fleas themselves, in turn, have greater fleas to go on;
While these again have greater still, and greater still, and so on.


"Me three, said the flea."