[VadeRetro]

Well, once you go monotreme, you never go back, or so they say.

I'm of two minds:

Don't go mental, stay placental!

Monotreme is too extreme!

But then

For primitive lust, a mono's no bust!

Mind me platypus duck, Bill . . .

Never mind! It's an area where I have trouble concentrating.

[VadeRetro]

For primitive lust, a mono's no bust!

Depending upon web page, either no nipples or (ugh!) hairy nipples. Take your pick.

[Aracelis]

For primitive lust, a mono's no bust!

Nope, sorry...give me an intelligent human male who has learned to walk upright every time. ;)

[longshadow]

Don't go mental, stay placental!

Monotreme is too extreme!
=====================================

Here's another view on the subject:

"So be sweet and kind to mother,
Now and then have a chat.
Buy her candy or some flowers,
Or a brand new hat.
But maybe you had better let it go at that.

Or you may find yourself with a quite complex complex
And you may end up like Oedipus.
I'd rather marry a duck-billed platypus
Than end up like old Oedipus Rex."

-Tom Lehrer