Guinea Pig from Outer Space

So is he a Croesian or a Volourian?
Blood tests and skin samples are one thing.
Why not just ask him.
He will tell you what he is.
But the boys in lab coats
would rather figure this out for themselves.
They have their theories.
Reality doesn't stand a chance.
So they strap his green body
to a gurney.
They poke and prod.
Then knock him out,
open him up,
cross their fingers
that he doesn't die
during their experiments.
But, not once, do they actually pray.
They're all new to this alien business.
It's the latest, sexiest, of professions.
Patrols bring back specimens
from different quadrants in the galaxy.
It's how it must have felt
for 21st century zoologists
when they got their latex gloved hands
on a previously unknown marsupial.
Of course, no one asked
the Croesian, or is he a Volourian,
whether or not he was prepared
to be a guinea pig
in the furtherance of Earth knowledge.
Jabbed with needles,
out cold as a moon rock,
unconscious trumps unwilling every time.