[null and void]

Now Tom Lehrer has to add another verse to his song!

He's got it covered:

There may be many othahs
but we have heard of them at Hahvahd

[null and void]

*sigh*
shouldn't have done it from memory...

These are the only ones of which the news has come to Harvard,
And there may be many others, but they haven't been discovered.