Birds

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What is Birds?

TamakiTamaki

Then,what is Birds?

Mr BirdMr Bird

Birds are vertebrate other than the Amphibians ,Reptiles, Fishes, Mammals.
Birds are born in egg production.


TamakiTamaki

Bird is pulmonary respiration?

Mr BirdMr Bird

Yes.


TamakiTamaki

They are simllar to ours!

Mr BirdMr Bird

But it is not the only.


TamakiTamaki

What?

Mr BirdMr Bird

It bird and humans are homeothermic animal,too.


TamakiTamaki

What is this?

Mr BirdMr Bird

It 's animals can be kept constant body temperature.


TamakiTamaki

Then,humans too.

Mr BirdMr Bird

There is something different from the human to bird.It can be covered with feathers, their beak without teeth, and forefoot evolved wings.


TamakiTamaki

I want to fly.

mr BirdMr Bird

But some birds can not fly.


TamakiTamaki

Ostrich and penguin!!

penguin

Mr BirdMr Bird

Yes.


TamakiTamaki

Wow!

Mr BirdMr Bird

Birds, where they live area is very wide.


TamakiTamaki

Same as a human being is it?

Mr BirdMr Bird

Birds, live through from North pole to South pole!


TamakiTamaki

Wow!

Mr BirdMr Bird

Their size is different.


TamakiTamaki

Is biggest bird Ostrich?

Mr BirdMr Bird

Yes. The smallest bird is the bee hummingbird of about 5cm.


TamakiTamaki

Very small!!



Parenting of birds

TamakiTamaki

Mr Bird!

Mr BirdMr Bird

What's wrong?


TamakiTamaki

I saw a TV program that birds are raising children.

Mr BirdMr Bird

To take to communicate when birds are breeding using Birdsong.
They usually breed become a breeding pair.But some species breed in polygamy or , polyandry.
And,parents will get to take care of the children.


TamakiTamaki

Bird is similar to the human

Mr BirdMr Bird

Yes!



Body of birds

TamakiTamaki

Mr Bird,can I lift you?

Mr BirdMr Bird

Oh!


TamakiTamaki

You are light.
Let's increase more yours bait.

Mr BirdMr Bird

Just a minute.
I can't fly if I heavy.


TamakiiTamaki

I Can't feel yours bone weight.

Mr BirdMr Bird

Yes.
Bone of birds is less than in other vertebrates.
There is weight of  birds bone only 5% of body weight.
So I have enough food.


TamakiTamaki

Birds are very right,don't they?
Body fo flying.

Mr BirdMr Bird

Other,the bird pectoral muscle is developed for the bird fly.
This is the muscle necessary to fly.、This accounts for 15% of body weight.
And,they have the of the body that do not sink in large amounts in the body waste.


TamakiTamaki

Hee.
Well, the penguins do not fly, the muscles do they have waned,don't they?

Mr BirdMr Bird

No.
Penguins are swimming in the water in the pectoral muscle used by the fly birds.
However, their body weight is heavy.


TamakiTamaki

Birds are very cool!

TamakiTamaki

I understood about Birds well.

Mr BirdMr Bird

Ok!
I'll introdece some Birds.


TamakiTamaki

I see.



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