Apropos the peahen. The peahen is, of course, a FOWL
and not mammalian in nature.

And if our scientist friend Steve Shaw were here, he would point out
that birds have reptilian brains and nervous systems,
and that our peahen has the brains of a dinosaur,
which is to say, nothing much.

Move over to that special area of mammals, however,
who bear their young in utero,
and there we get the animal origin of jealousy,
which -- my studies are modest, but I recall this much --
is about shielding a pregnant female, in the interest of
insuring the propagation of the species.
A whole other can of worms?