Mammals
What is Mammal?
![Tamaki](image/t-n.jpg)
First, What is a mammal?
![Mr Cat](image/n-n.jpg)
Mammal is that of animals of fish, amphibians, reptiles, birds other than vertebrates. Most mammals give birth a child.
This is referred to as viviparous.
![Tamaki](image/t-n.jpg)
"Most" is to be worried about.
![Mr Cat](image/n-w.jpg)
Some mammals does not lay a child!
I'll explain it later.
![Tamaki](image/t-w.jpg)
Ok!
By the way, Where are mammals different from other animals?
![Mr Cat](image/n-n.jpg)
There are breast-feeding and the hair growing on the body.
![Tamaki](image/t-g.jpg)
Oh!
Are birds have fur?
![Mr Cat](image/n-n.jpg)
No,they aren't. They have feather.
![Tamaki](image/t-b.jpg)
Wow!
It is producing the warmth of the futon.
Is there a feature are other to it?
![Mr Cat](image/n-n.jpg)
Neck bone of most mammals is seven.
But, fellow Anteater companion and dugong is ten and was nine or six it.
![Tamaki](image/t-n.jpg)
Neck is long giraffe, but it is the same as the seven human!
I did not know.
![Tamaki](image/t-n.jpg)
Mammals are not produce children while ago what is?
I will be worried about.
![Mr Cat](image/n-w.jpg)
I see. So I'll explain it.
Do you know a duckbill?
![Tamaki](image/t-n.jpg)
I have heard it before.
Television said it's living in Australia .
![Mr Cat](image/n-n.jpg)
That's right.
It in animals in Australia, we can be seen at the zoo in Japan.
Duckbill lay eggs instead of the child, it is a primitive mammal with a beak.
![Tamaki](image/t-n.jpg)
It is a bird almost.
Why is a mammal?
![Mr Cat](image/n-n.jpg)
Not with a feather Duckbill, and breast-feeding.
And the structure of the body is a mammal.
And, feeding Duckbill is unique.
![Tamaki](image/t-n.jpg)
How do they do it?
![Mr Cat](image/n-w.jpg)
Because milk come seeping from the belly Duckbill, parents are feeding it on the ride to belly a child .
![Tamaki](image/t-n.jpg)
Wow! It's funny.
Morphological characteristics, ecological
☆Body temperature
![Mr Cat](image/n-n.jpg)
As with birds, those that are homeotherms to keep almost constant body temperature accounts for most mammals.
![Tamaki](image/t-w.jpg)
I am a companion that ♪
![Mr Cat](image/n-n.jpg)
However, thing also equipped to do thermoregulation a poikilothermic animal manner as sloth.
![Tamaki](image/t-b.jpg)
sloth…
![Mr Cat](image/n-n.jpg)
This is a device they do not use energy.
![Tamaki](image/t-n.jpg)
Wow!
![Mr Cat](image/n-n.jpg)
Mammals have a urogenital gate and anus.(hole and fetal urine comes out) But, Duckbill such as has a total discharge port common. (Birds and reptiles 1 hole)
☆Features of the teeth
![Mr Cat](image/n-n.jpg)
Teeth of mammals in general, is taking a shape with a different function, respectively.
Four kinds incisor teeth (incisors), canines, premolars (premolars) molars (molars).
![Tamaki](image/t-n.jpg)
Also human!
![Mr Cat](image/n-n.jpg)
They have six molars and eight premolars and two canine teeth and incisors are six,
but there is something with the same type of teeth as toothed whales.
![Tamaki](image/t-b.jpg)
In class, I remembered it from learned shape of the teeth of the carnivores and herbivores is different!
![Mr Cat](image/n-n.jpg)
That's right.
Canines in order to capture the molar-prey bite off the meat, herbivores has made development on its own molars to grind the incisor-grass bite off the grass carnivore.
![Tamaki](image/t-w.jpg)
It is the average person because it is omnivorous.
Herbivorous and carnivorous
![Mr Cat](image/n-n.jpg)
I will introduce the herbivorous and carnivorous from here.
![Tamaki](image/t-n.jpg)
Once, It is keep the omnivores like me.
![Mr Cat](image/n-n.jpg)
Let's go right away.
I introduced the difference of teeth in the introduction of this before.
![Tamaki](image/t-g.jpg)
Yes.
Carnivore has evolved canine teeth to catch their prey and molar to bite off the meat.
![Mr Cat](image/n-w.jpg)
That's right.
Also, there are difference!
![Tamaki](image/t-g.jpg)
What is it?
![Mr Cat](image/n-n.jpg)
It is the position of the eye.
![Tamaki](image/t-b.jpg)
Eye!?
![Mr Cat](image/n-n.jpg)
Yes.
Forward, carnivore,Herbivores, on the side eyes.
![Tamaki](image/t-g.jpg)
Is there a reason something to evolve it?
![Mr Cat](image/n-n.jpg)
Yes.
Eyes carnivore, within sight in both eyes are wide.
Then, it is easy to take the perspective of the object they are looking at.
It becomes easier to's Hunting.
Herbivores, overlooks the whole.
By doing so, they make it easier to find the enemy attacking them.
![Tamaki](image/t-n.jpg)
I thought the eye important.
Difference of herbivores and carnivores?
![Mr Cat](image/n-n.jpg)
And foot are different.
![Tamaki](image/t-g.jpg)
…Foot?
![Mr Cat](image/n-n.jpg)
Yes.Foot.
Do you know either of herbivores and carnivores or run fast?
![Tamaki](image/t-w.jpg)
I think it 's carnivore!
But ..., herbivore was also faster.
![Mr Cat](image/n-g.jpg)
Yes.
Well, wonder if there is endurance which way?
![Tamaki](image/t-n.jpg)
Uhnn.
It's guesswork, but herbivore!
Cheetah will be stopped to run quickly.
![Mr Cat](image/n-w.jpg)
Correct answer!
![Tamaki](image/t-a.jpg)
I have hit.
But,why?
![Mr Cat](image/n-n.jpg)
It is because the herbivores to escape from the enemy.
Even you would play tag?
What would you do if you are pulled apart at a faster speed quite partner as was demon, you're chasing has continued to run much if?
![Tamaki](image/t-n.jpg)
Without hesitation, I chase other child.
![Mr Cat](image/n-n.jpg)
Herbivores I know.
To get away from the enemy, they'm keep running.
In order to bite by increasing the speed at the moment, legs they were faster carnivorous animal.
![Tamaki](image/t-b.jpg)
Hold it!
So, hunting wonder if it was easier if evolution carnivore as herbivore?
![Mr Cat](image/n-n.jpg)
It is I do not have to be a description of the body.
The herbivores, feet would be long thin.
It has evolved to be slim Saki lightly foot, run fast for a long time.
Then, in order not to damage the foot, the skin of the foot is now hard hoof.
![Tamaki](image/t-g.jpg)
Why carnivores did not evolve that way?
![Mr Cat](image/n-n.jpg)
Carnivore Once evolved that way, they will not be able to sneak up.
Foot is long, they can not lower the posture.
In addition, power is gone with the fine, they will not be able to beat the game.
Even keeping up with fast feet, do not they do not defeat.
![Tamaki](image/t-n.jpg)
It mon is so strong leg is solid me carnivores.
It was going to evolve them on its own it was found that there is a reason properly.
![Tamaki](image/t-n.jpg)
It was found that it is not known mammals.
![Mr Cat](image/n-w.jpg)
It was good to know.
![Tamaki](image/t-w.jpg)
Yes!
![Mr Cat](image/n-w.jpg)
The following are specific examples!
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