Purpose

Well, you see,
even the smallest
The unnoticed kingdoms
The bacteria,
the protists,
the fungi,
they keep it clean
and produce
With purpose
to begin with
The plants do their part
Photosynthesize
and provide
While the animals
complete the coil
Nature's perfect cycle
Except, of course,
for that one animal
That peculiar species
The bulge in the line
The link weakens
and with a push
it ruptures
The circle is undone
by a single species
Relative newcomers
with new thoughts, and
destructive tendencies
No real purpose,
like the others,
but to break the coil
And some say
they will be the death
of a planet
But I don't believe
Not for a moment
It will persist
after extinguishing them
by its inherent patience
and quiet persistence