Why can't the human baby walk after birth?

[shreekalivijey]

why human baby can't walk after born

[Chris4]

why human baby can't walk after born

What has that question got to do with the topic? Why should a baby be able to walk after it is born. It talks a while to learn stuff after you are born, walking being one of them. Its just nature. It would be ridiculous if when you were born you could walk, talk and go straight into university.

[MrMistery]

Actually there are a lot of mamals that have babies which can walk right after birth. Walking for them is an instinct. Human babies are not able to walk after birth for a very good reason: The motor fibres start secreting their mielin sheath 2 months after birth. At about 2 years the process is completely... So if your kid is walking at 2 months he has a genetic mutation

[victor]

Genetic mutation??beneficial or harmful??
Myelin is used for making the impuls faster isn't it?? so you mean like babies can't walk becasue of the slowlyness of the impuls that comes from MO?

[James]

That's the point, it is neither beneficial nor harmful to walk at birth for humans in our modern society. Thus, natural selection does not favour this, unlike other animals such as giraffes

[chemistry_freako]

Yea - pretty true - imagine if a pregnant lady gives birth to a baby, and it walks to her immediately =\

[victor]

Yea - pretty true - imagine if a pregnant lady gives birth to a baby, and it walks to her immediately =\

And say, "mom, is he my father?"..

Oh wait...talking about ability...all of our ability is controlled at our cerebrum which is divided into lobus: frontalis, temporalis, osipitalis and the others (I forgot the name..).
Which one control the ability to walk?

[James]

Our cerebellum coordinates movement, and is key to the ability of walking.

[victor]

If the child can't walk on the early age...is it because his/her cerebellum hasn't functioned??of it's just like Andrew said...it's connected with motor fibres and muscles??
If it like that what about the animal which can walk after it was born in the early age??

[MrMistery]

It has nothing to do with the development of the cerebellum. The cerebellum also comands muscular tonus and modulates movement and the baby can do that.
Anatomy 101: the baby's nervous system is fully developed at birth. It only lacks synapses.

[James]

The brain helps us to coordinate walking, but babies cannot walk due to MrMistery's reason, and in fact they probably couldn't support a head 1/4 size of their body anyway.

[victor]

@James
I think that's called the coordination system between nerve and muscle hasn't coordinate prfectly to each other..
@Andrew
Thanks for the anatomy 101...any other else?like 102, 103, etc....