I pronounce them pretty differently.
The animal which is called a whale, I pronounce cee-tu-CEE-un or cit-tu-CEE-an.
The act which when lacking makes wikipedians wail, I pronounce cit-TAY-shun or cie-TAY-shun.
So, it took me a while to really spot the pun.
However, here is the guy who could appreciate the pun, and who showed it:
Why Evolution is True : Wikipedia makes a biological funny
Nota optime, that the title of the blog, as opposed to the particular post, is false./HGL