Is that the sound of a baby dinosaur calling to its mother?
Nobody has ever heard a baby dinosaur.
Nobody has seen one.
The age of the dinosaurs ended millions of years ago.
But we know a lot about them from what dinosaur hunters have found….
They have found small baby bones in nests.
They have even found dinosaur eggs.
Many dinosaurs were very big.
But their eggs were small.
The smallest was only as big as a quarter.
The biggest was about the size of a football!
Were dinosaurs good mothers?
This kind of dinosaur was.
She made a nest of mud and laid her eggs in it.
Chickens sit on their eggs.
But this dinosaur did not.
She was too heavy.
The eggs would break!
She put leaves on the eggs to keep them warm.
The mother watched the nest.
Lots of animals liked to eat dinosaur eggs!
She kept them away.
Inside the eggs, the babies grew.
They breathed through tiny holes in the eggshells.
One day the eggs cracked!
Little baby dinosaurs came out.
They were hungry.
Maybe they squeaked.
The mother dinosaur brought them food.
The babies ate and ate all day long.
Dinosaur babies had big heads and big eyes.
They could see and hear well.
Human babies are born without any teeth.
Not dinosaur babies!
They had lots of teeth.
What did baby dinosaurs eat?
Some kinds ate leaves and berries and seeds.
Some kinds ate little animals and bugs.
Was it safe for baby dinosaurs to hunt for food alone? No!
Enemies were all around.
And baby dinosaurs could not fight or run fast.
They could only hide.
Some baby dinosaurs were lucky.
They were never alone.
They lived in herds.
Even then enemies tried to grab the babies and eat them.
Maybe the big dinosaurs made a circle and kept the little ones inside.
Babies were safe in the dinosaur herd.
The dinosaurs walked and ate and slept together.
Baby dinosaurs kept growing and changing.
Some kinds grew sharp horns.
Some kinds grew spikes on their tails.
Others grew bony frills.
They grew until they weren’t babies anymore.
Some grew to be the biggest animals ever to walk the earth.
And some had dinosaur babies of their own.