Dinosaurs emerged from the worst mass extinction in the history of life. The closest life has ever come to completely dying out. And this happened about 250 million years ago at the end of what we
dinosaurs, the brontosaurus and diplodocus and brachiosauruses. And then the third group is the ornithischian dinosaurs. And this is a whole variety of mostly plant-eating dinosaurs that had
dinosaurs, called a allosaurus, much more primitive dinosaurs that were the top predator.
dinosaurs in the same way that hair is normal for mammals. I think it goes without saying, but I'll say it anyway. We cannot fly with our hair. Some of us have more hair than others,
dinosaur. It's called Yi qi. It's from China. It had a wing made of skin. Kind of like a bat. Now, it also had feathers on the rest of his body. These are such different configurations. I mean,
dinosaurs that had feathers, that had wings. They evolved these from ancestors for different reasons. But now they could experiment with different ways. And they were all kind of around
dinosaurs by 200 million years they were here before the oxygen concentrations in our atmosphere were at 21% before the continents sat in their current position
Dinosaurs went extinct about 20 minutes before midnight.
Dinosaurs are cool. Dinosaurs are very cool.
Dinosaurs. Ark. Ate everyone.
dinosaurs and d and the before continental drift there was the one super continent uh and that gave us the
dinosaurs have now disappeared; they've been hunted to extinction and we're still sitting in the studio and we are using an advanced technology.
dinosaurs like Peter mandelson who are determined that um old industry with its
dinosaur and they got down on their knees and they cowered behind their hands like this dinosaur was a terrible God and this is really just a phenomenal
dinosaur and they got down on their knees and they cowered behind their hands like this dinosaur was a terrible God and this was really just a
dinosaur uh and um it was it was really a kind of magical moment of uh of of
dinosaur that doesn't uh represent the people. It represents the few. And um
of dinosaurs living all over the world. Different species in different places, including some of the most famous dinosaurs of all, like Brontosaurus, Brachiosaurus, Stegosaurus, Allosaurus,
Jurassic dinosaurs. That we can find there. About 103 million years ago, the Jurassic transitions into the Cretaceous. And unlike many of the other transitions in Earth history,
which dinosaurs were firmly in control, even though it wouldn't last a whole lot longer. If you
Many dinosaurs had feathers all over their bodies. Even some dinosaurs had wings on their arms.
with dinosaurs did evolve pretty sizable brains for the small little animals that they were.
When dinosaurs got their start, and during the first many tens of millions of years of the history of dinosaurs, all the land was gathered together. It was Pangaea that could move quite
how dinosaurs evolved feathers and wings and took to the skies, and then all the amazing things that birds have done in the 150 million years since they entered the scene. In writing The Story of
of dinosaurs were being found and Huxley noted the similarities. And they were things as basic as look at the foot of a chicken. And it really looks like the foot of a small meat-eating dinosaur with
Small dinosaurs, the size of dogs, big dinosaurs. There's a Tyrannosaur that's more than 30 feet long and weighed more than a ton and feathers all over its body. We see plant eating dinosaurs with
on dinosaurs that are about the size of sheep up to the size of horses. That's where wings first evolve. And those wings are no bigger than a laptop screen. So just by the laws of physics,
baby dinosaurs as they're learning to move that flap their wings and that got them a bit of lift and thrust. There's all sorts of ideas. And evolution by natural selection,
those dinosaurs. Some were still quite primitive. Some still had teeth and claws and long tails.
rex dinosaur, possibly the most iconic predator in the history of Earth. You have deeply studied and written about their evolution, biology,
- For dinosaurs, let's see what's the top post of all time.
some dinosaur fossils. That I'd agree with. It's pretty much impossible they didn't come across some dinosaur fossils. Did they come across a whole
The dinosaurs-- the dinosaurs did not have a space program and that's why they're not here today.
A dinosaur living out his dream of flying.
A dinosaur leaves-- interestingly, cephalopod fossils are actually way more abundant.
first dinosaur bottom there that's the first nonhuman human that we um dug up from jalter when people started figuring
So dinosaurs died out 65 million years ago.
So dinosaurs are well and truly extinct.
A dinosaur heap of dung, and it looked like elephant dung.
of dinosaurs until now.
The dinosaurs that figured out how to deal with fruiting flowering plants are birds.
But dinosaurs really seem like an impossibility.
With dinosaurs. He was a great man to work with, and a mentor to me, because you would look at him and say like, wow, if Ralph
a dinosaur you know they're dead and gone but I always say that dinosaurs are past but but love waves are alive and
the dinosaurs. And I thought, "Wow. I wonder if technology is moving so fast that everyone feels old." Greg Sanders: You can't keep up.
The dinosaurs were knocked off famously about 65 million years ago with the K-T transition impact.
of dinosaurs. There were dinosaurs that ran around on two legs and had arms and hands that could manipulate things and heads that might have expanded with brain, yet something had happened to
The dinosaurs were on the Earth for roughly 200 million years and to the best of our knowledge not a single dinosaur became intelligent.
Now dinosaurs are much more difficult.
lifelike dinosaur movements and it Roars and uh so we had a flash mob up there the second floor where everybody filtered in um secretly and they were