In a land not far away,
There live some scary creatures.
I'm terrified to see them,
Having heard about their features.
They have no left, or even right,
Or even front or back.
They're dedicated carnivores.
I hope I'm not their snack!
Without a heart or even blood,
Good heavens, what a curse!
But hold your hats, my good friends.
It sadly gets much worse.
Some have up to fifty arms
And many thousand feet!
I guess that means they're quick enough
To make me their next treat.
It's good their mouths are kind of small,
But don't feel safe just yet.
They send their stomachs on a quest
To eat all they can get.
They eat things larger than their mouths.
That has me quite alarmed.
I couldn't sneak past all those eyes
To keep from being harmed.
They have no bones to hold them up,
But still they crawl around.
They have no mind to help them think,
And do not make a sound.
They reproduce like you and me,
But buddy, just beware:
They have been known to do the job
Are they from outer space?
An asteroid nearby?
Their skin is hard and spiny,
And their image makes me cry.
So I won't go to see them,
Although my neighbors do.
I'm frightened by the thought of them
And man, you should be too!
What are these creatures?