Junior on parshas Noach

Last Shabbos, I was learning Sefer Hachinuch with Junior, and I ended parshas Bereishis with the one line regarding parshas Noach, that there are no mitzvos in parshas Noach. Junior objected, pointing out that saving the animals was a mitzvah! And so we discussed the idea of a mitzvah ledoros, for bnei Yisroel.

Also, a few weeks ago Junior came back from school with an idea that the reason dinosaurs became extinct was that there was no room for them on the taivah. Of course, he knows that they became extinct millions of years before that, but who says he needs to be consistent? And he didn't really hold firm by this idea, when I asked him about it later. I am not sure where he got this idea. It might have been from a teacher or a fellow student.

{Update: I now see at Life In Israel that someone else had the same idea:

}

Or else he might have come up with it himself. After all, one of his favorite songs is The Unicorn, by Shel Silverstein, as sung by the Irish Rovers. He might have extended the idea from unicorns to dinosaurs:

A long time ago, when the Earth was green
There was more kinds of animals than you've ever seen
They'd run around free while the Earth was being born
And the loveliest of all was the unicorn

There was green alligators and long-necked geese
Some humpty backed camels and some chimpanzees
Some cats and rats and elephants, but sure as you're born
The loveliest of all was the unicorn

The Lord seen some sinning and it gave Him pain
And He says, "Stand back, I'm going to make it rain"
He says, "Hey Noah, I'll tell you what to do
Build me a floating zoo,
and take some of those...

Green alligators and long-necked geese
Some humpty backed camels and some chimpanzees
Some cats and rats and elephants, but sure as you're born
Don't you forget My unicorns

Old Noah was there to answer the call
He finished up making the ark just as the rain started to fall
He marched the animals two by two
And he called out as they came through
Hey Lord,

I've got green alligators and long-necked geese
Some humpty backed camels and some chimpanzees
Some cats and rats and elephants, but Lord, I'm so forlorn
I just can't find no unicorns"

And Noah looked out through the driving rain
Them unicorns were hiding, playing silly games
Kicking and splashing while the rain was falling
Oh, them silly unicorns

There was green alligators and long-necked geese
Some humpty backed camels and some chimpanzees
Noah cried, "Close the door because the rain is falling
And we just can't wait for no unicorns"

The ark started moving, it drifted with the tide
The unicorns looked up from the rocks and they cried
And the waters came down and sort of floated them away
That's why you never see unicorns to this very day

You'll see green alligators and long-necked geese
Some humpty backed camels and some chimpanzees
Some cats and rats and elephants, but sure as you're born
You're never gonna see no unicorns

[New Lyrics]
Now you might think this is the ending to the song,
But I'll have to tell you friends that in fact you're wrong
You see, Unicorns are magical, so when the rain started pouring,
They grew themselves some wings and they took to soaring.

You'll see green alligators and long-necked geese
Some humpty backed camels and some chimpanzees
But if you're looking for the unicorns, don't be forlorn,
The second star to the right and straight on until morning.