We now call them non avian dinosaurs and avian dinosaurs.

Birds are living dinosaurs.

Avian dinosaurs are our modern birds.

But birds are dinosaurs.

We actually classify them as dinosaurs.

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

So here was the character that linked birds and dinosaurs.

So the non avian dinosaurs are the big clunky ones that went extinct.

The Cretaceous was a time when giant theropods, meat eating dinosaurs that stood on two legs, roamed the Earth.

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

Sort of a timeline, very non linear scale, nature rates and trilobites and dinosaurs, and eventually we saw some humans with caves ... Birds were flying overhead, after pterosaurs.

So enormous excavations and a lot of work, and out of essentially a partial herd of dinosaurs that you saw buried there 20 tons of material we erect Jobaria, a sauropod dinosaur like we haven't seen on some other continents.

Dr. Peter Dodson at the University of Pennsylvania actually realized that dinosaurs grew kind of like birds do, which is different than the way reptiles grow.

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.

You get fungi, you get fish, you get plants, you get amphibia, you get reptiles, and then, of course, you get the dinosaurs.

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

Here's the animal that was causing it trouble.

The armoured plant eater is the best preserved fossil of its kind ever found, according to reports in National Geographic.

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.

So for instance, most of the birds in this picture are migratory birds.

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.

Terrible news for the dinosaurs, but great news for our mammalian ancestors, who flourished in the niches left empty by the dinosaurs.

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

So, I do a lot of work on dinosaurs.

Dinosaur evolution proceeded at a stately pace, an order of magnitude slower on any way you want to measure it.

They appeared shortly after the dinosaurs disappeared, 65 million years ago, at a time when whales still had legs, and they come from a rebellious little puffer fish faction oblige me a little Kipling esque storytelling here.

Well, if you want to fly, it's good that you look at birds to be inspired by birds.

This is one of my papers A pygostyle from a non avian theropod.

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.

We are losing species from the Earth faster than the dinosaurs disappeared, and leading that loss are amphibians.

Archaeopteryx, which is a bird, a primitive bird, still has that very primitive hand.

And what happens next is the age of dinosaurs.