Learn About Dinosaurs Part 1 | T-Rex, Triceratops and More | Educational Video for Kids

Welcome back to Brain Candy TV.

Hey Brainiacs!

It’s Lizzy’s first trip to the museum and she’s really

excited to see the dinosaur exhibit!

Most of the great dinosaurs died off millions of years

ago, so all we have left of these amazing creatures

are fossilized skeletons like this one of a

Tyrannosaurus rex.

Let’s imagine going way back in time to learn about

these awesome ancient animals!

Dinosaurs are so cool!

They were some of biggest creatures to have ever

lived, and they ruled the Earth for over 150 million years!

We know that dinosaurs lived a long time ago, but how

long ago was it?

It was so long ago that humans didn’t even exist yet!

Most of the great dinosaurs went extinct around 66

million years ago.

An animal is extinct when it doesn’t exist anymore,

anywhere in the world.

Let’s try to picture what 66 million years ago looks like.

Let’s build a timeline that stretches way up into the sky.

We’ll put today at the bottom, and at the top is 66

million years ago.

An average human lifespan is around 70 years.

On this timeline, if we go back in time 70 years,

before most of your grandparents were even born, that

would only be as high as a single sheet of paper.

5000 years ago, which is the beginning of recorded

human history, would only be 71 sheets of paper high.

Modern humans like you and me have existed for around

200,000 years, so on this timeline, that would only be

28 centimeters high.

But if the great dinosaurs went extinct 66 million

years ago, that would add up to a stack of paper 94

metres high!

That’s 1 metre taller that the Statue of Liberty!

Whoa, that’s a lot of lifetimes ago!

Remember that each sheet of paper represents 70 years ago

on our timeline.

Not only that, but humans have only existed for a tiny

amount of time compared to dinosaurs.

Dinosaurs appeared around 235 million years ago.

On our timeline, that would be a stack of paper 10

metres taller than the Eiffel Tower!

So dinosaurs ruled the earth for this long, and humans

have only existed for this long.

So humans are definitely the new kids on the block,

and we showed up a long time after the dinosaurs

went extinct.

Dinosaurs came in all shapes and sizes.

Some were quite small, like this velociraptor at less

than six feet long.

Deinonychus was a medium sized dinosaur at around 11

feet long.

Then of course there were the BIG dinosaurs!

Triceratops was as big as a mid-sized school bus at

around 30 feet long and weighed just as much.

Ha ha, imagine riding one of these to school!

That might draw some attention!

Tyrannosaurus rex (or T-Rex for short) was as long as

a fire truck, including the big ladder!

That’s 40 feet long!

Long before T-Rex and Triceratops showed up, there

were enormous sauropod dinosaurs like this

Brachiosaurus.

It would have been as big as an excavator with two

giant arms.

That’s 69 feet long!

The largest land animal living in the world today is

the mighty African bush elephant.

Look how small it is compared to these ancient giants!

Let’s learn some cool facts about two of these

dinosaurs – Triceratops and T-Rex.

Triceratops was a strong and sturdy dinosaur.

It was a herbivore – that means it only ate plants.

But even though they didn’t eat meat, they were still

very dangerous and had some of the best defensive

adaptations in the history of the world.

Triceratops and T-Rex both lived during the Cretaceous

period – the last period of the great dinosaurs.

A triceratops would have made an excellent meal for a

hungry T-Rex, but it was very risky to take on a Triceratops.

It had a very unique ball-and-socket joint to connect

its head to its neck, which gave it the ability to

quickly swing its head in any direction, along with

those dangerous horns.

And unlike the relatively soft horns of a rhinoceros

which are made from keratin like our fingernails, the

two horns on a Triceratops skull are solid bone so

they were very strong.

Those huge horns would have made any predator think

twice about attacking a Triceratops, but the large

bony frill at the back of the skull would have also

protected Triceratops’ neck from any attackers

brave enough to try.

However, Scientists now believe that the prominent

horns and frill of Triceratops skull were used

primarily for courtship and other social displays, so

perhaps there weren’t many dinosaurs unwise enough to

test a Triceratops in battle after all.

This is Tyrannosaurus rex.

King of the cretaceous carnivores.

A carnivore is an animal that only eats meat.

The name Tyrannosaurus rex means “king of the tyrant

lizards” and the name is well-deserved.

It was one of largest carnivores in the world.

As far as dinosaurs go, T-Rex was probably very smart.

Its brain was twice as big as the brains of other

giant carnivores.

T-Rex had the strongest bite force of any land animal.

It had a bite force of over 8,000 pound-force.

That’s like the weight of 3 small cars pressing down

on each bite from T-Rex’s powerful jaws, which were

lined with sharp banana-sized teeth up to 8 inches long.

It’s bite was powerful enough to crack open bones,

which gave T-Rex a special advantage over other

dinosaurs since it could get at the extra nutrition

inside the bones and could consume every bit of their prey.

T-Rex had a highly developed sense of smell and could

smell prey from great distances.

Based on impressions left on the inside of T-Rex

skulls, Scientists discovered that compared to the

size of their brain, their olfactory bulbs were very

large – that’s the part of the brain used for smelling.

This means that T-Rex’s sense of smell was probably as

good or better than a bloodhound, which has one of the

best senses of smell in the animal kingdom.

T-Rex also had excellent vision.

Its eyes pointed forward, giving it 3D vision even better than

modern eagles and could possibly see prey at distances up to

up to 6 km away!

All of these things combined – excellent vision,

incredible sense of smell, big brain and the most

powerful bite of any land animal, made Tyrannosaurus

Rex one of the most formidable carnivores the world

has ever seen.

I hope you enjoyed learning about dinosaurs and find

them as cool as I do!

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