But there's another dinosaur that is found in this formation that looks like a Triceratops, except it's bigger, and it's called Torosaurus.

We now call them non avian dinosaurs and avian dinosaurs.

We're not going to be able to make a dinosaur based on a dinosaur.

You'd have a big dinosaur and a littler dinosaur.

So now we know that Torosaurus is actually a grownup Triceratops.

Now if you want dinosaur DNA, I say go to the dinosaur.

Here's the animal that was causing it trouble.

The bone histology tells us that Edmontosaurus is a juvenile, or at least a sub adult, and the other one is an adult and we have an ontogeny.

Fourth graders love their dinosaurs, they memorize them.

So there's these two dinosaurs, T. Rex and Nanotyrannus.

Konqi

Who's the dinosaur?

Although the king of them all, Tyrannosaurus rex, lived millions of years after Borealopelta, the armoured dinosaur may have been hunted by some of its formidable ancestors.

You can call it a dinosaur, but look at the velociraptor the velociraptor is cool.

It's a giant duck bill dinosaur.

And I have been fortunate enough to find things like the first eggs in the Western hemisphere and the first baby dinosaurs in nests, the first dinosaur embryos and massive accumulations of bones.

The chicken is a dinosaur.

I loved dinosaurs.

There was a dinosaur...

I'm a dinosaur.

There's a Triceratops in every museum in the world, but no one had ever collected a juvenile.

I'm going to talk about a different aspect of dinosaurs, which is the finding of them.

They thought Torosaurus should be kept and Triceratops thrown out, but that's not going to happen.

Birds are living dinosaurs.

So, I do a lot of work on dinosaurs.

Someone is re engineering dinosaurs by extracting their DNA from prehistoric amber.

Where are all the little ones?

Erm... the man and the wheel and the dinosaur.

And everybody says, A Triceratops and a Torosaurus can't possibly be the same animal because one of them's bigger than the other one.

So Torosaurus is extinct.

And what happens next is the age of dinosaurs.

Now I assume that we remember dinosaurs.

And then there's this thing called Dracorex, Hogwart's Eye.

228 million years old, we found what really is the most primitive dinosaur that's the Ur dinosaur.

Jack Horner Building a dinosaur from a chicken

That's getting closer.

That's a juvenile.

Jack Horner Shape shifting dinosaurs

Oh, hell, they're both dogs.

As the juveniles are growing up, their horns actually curve backwards.

And sure enough, Nanotyrannus has juvenile bone and the bigger one has more mature bone.

'Strong predation on a massive, heavily armored dinosaur illustrates just how dangerous the dinosaur predators of the Cretaceous must have been,' said Brown.

So if you ever fantasize about going back in time and seeing what a dinosaur looked like, that's what a dinosaur looks like.

So I picked a Camarasaurus, because the Camarasaurus was the most abundant of the sauropods in North America.

Dinosaur used camouflage to evade its enemies