And today I'm counting down my top five greatest dinosaurs ever.

Mhm.

But which ones do I think?

There were big dinosaurs, even bigger.

Dinosaurs.

Tiny ones, Skerry ones.

Ones that ate meat Good on ones that ate plants.

Wow.

So picking my five favorites is possibly my toughest challenge yet.

But coming in at number five it stegosaurus.

I've heard that stegosaurus flushed blood into the enormous plates on top of their backs in order to scare off other dinosaurs.

So I went back 150 million years to see that for myself.

Well, that's the color of their plates before they flush blood.

What's that?

Its analysis orris.

He played the changing color.

I'll take Go on stage, You show him.

Whoa, what you have for that tail?

You did it.

Washing blood into those plates really does work, right?

Hold onto your hats.

Things might get a bit scary now because coming in at number four, it's Spider Saurus.

I went in search of a spinosaurus as I needed a scan of it for a display back at the museum.

And I knew just the place to find, but who he stopped for a drink.

Whoa!

Look, it didn't stop for a drink.

It stopped fishing.

That gives me an idea way.

Just need to wait for spina source to go for a swim.

Oh, wait.

Now is my way.

Got it?

Okay.

Next up, the three horn plant munching Dino himself at number three.

It try, Sarah tops.

I was on the lookout for a try.

Sarah tops horn to replace the one I'd broken back at the museum when I came across to battling.

Try Sarah, tops.

That one's broken its horn.

Now is my chance.

Perfect.

Oh!

Oh, no, no, no.

Has his backpack.

It's always full of useful things.

A fad.

How is this gonna help me?

Yes.

Whoa, It worked.

The bright colors scared him off.

Now for a dinosaur that grew up to be bigger than a house at number two, it's Argentina.

Saurus e was on an adventure with Cem Argentina Saurus.

I wanted to see the view from the top of one.

Suddenly the opportunity presented itself to me Going up.

Still going up.

Wow.

Oh, what have you on to our final contender?

He's big, He's fierce.

He has an almighty roar.

He's my number one greatest dinosaur T ranks.

I traveled back 65 million years to rescue my backpack from Ah, Hungary.

T.

Rex.

Oh, wow.

There must be something in here that he wants.

My sandwich.

One meaty sandwich.

This is what he's after.

Are you hungry?

Oh, I guess you are.

Hey, guys, it worked.

Oh, I never think.

Get to eat my lunch that day.

So there we have it.

My top five greatest dinosaurs.

See you next time.

Yeah.