Mystery Poem

During our move process we came across an interesting piece of paper with a poem on it. No name is written. Emily seems to think it was a group effort. Please comment below if you have any insight. Here is the poem, and a scan is above:

Here we come walkin' down the street.
We got no monkeys, but that's what we eat.

Hey hey, I'm the alligator.
I'm just walkin' around.
I comp and bite and swing my tail,
Trying to knock you down.

I'm just tryin' to eat cause,
That's what I live for.
I eat, sleep, and hunt all day now,
'Til I don't as for more.

So just stay out of my way,
Or your doom will be sure
I'm a grumpy camper.
Don't try to ask for more.