why do we have so many races...black white red brown.....what is the main reason??? and what is the differenc?

Question

between them??

Answer 1

From a biological, scientific standpoint, there is no such things as "race." Objectively, there is more variation within each group that is called a race than there is between these groups. Also, many of the "racial" variations are really post-conception adaptations due to the maternal diet and environment, early childhood diet and environment, and child-rearing practices.
What keeps "racism" and "racialism" going is really ethnicity---the cultural differences between groups. That's why, for example, Korean children in Japan on average don't do as well in school because "everyone knows how dumb they are" whereas they do really well in school in the United States where "everyone knows how smart Oriental kids are."
If Saudis and Anglo-Saxons had many millions of years to evolve separately they might evolve into races, but it hasn't ever been that way. People have been mixing their genetic material pretty freely since there were people.

Answer 2

Geographical seperation and time.

Remember that every time someone is born, there are some tiny changes. Some of those changes help the person to survive, some hinder that person, and some don't really matter, suvival-wise. If that change is the kind that helps, that person is more likely to live long enough to have kids and pass that change on to the next generation, and they to the next and so on.

Take, for example, white skin. Skin pigmant is caused by melanin, which turns the skin dark. Malanin also helps block UV rays. The thin is that people need a cartain amount of UV and sunlight each day to help create a vitamin in the body that helps keep us healty.

The people who moved north into Europe from the middle east and africa did not have white skin. They had dark skin, like everyone else. But living further north, they did not get as much sunlight as the people who did not move into europe. With less sun, there was less of this vitamin produced in their bodies. So, those born with less malanin in their skin did not block as many of the UV rays, so more vitamin was created in their systems. With everything else being equal, in Europe, the paler person was just a bit more healthy. And so they were more likley to be succsessful and reproduce. And the paler people tended to become more numerous and reproduce more and more. Until, several thousand years later, we get the skin type we have today.

Since those circumstances were not true world-wide, this was a localized effect. And since it was difficult to travel very far from your home before modern technology, that mutation did not leave Europe for a long time, giving it isolation in which to act.

That is only an example, not a complete explanation. But I think it at least gives a clue as to why people changed.

Answer 3

I am not stating this as a fact, I am not a scientist in this field but... Races occur mostly because of differences in the local environment and adaptations to accommodate those differences (food, weather, temperatures, etc.) . However, if you were to look at all the people in the world comparing them LOCALLY there wouldn't be any significant differences that you would notice. You only really notice the differences when you compare people from distance locations, such as Northern Europe and Africa. Within a small region, even as you move from place to place, the differences are not apparent. The changes between the "races" are gradual and don't really exist until you compare people from distant regions.

Answer 4

People are wrong who say they are the same except color, were different races for a reason, when mankind migrated from India/Yemen they began to evolve to their surroundings just like any other animal. Simple changes like darkness of skin, nose shape, hair texture, even some bone changes. Were all still Human but just a different race in the same species. When people moving from the north met with the people that already settled had a lot to do with the different races, although there are technically only three, *****, Caucasian, and Mongoloid

Answer 5

I'm not sure of any scientifuc explanation, but the Romans' explanation, which was I THINK taken from the Greeks, was:

One day, Phaeton (the son of the sun-god) asked his father to take reigns of the horses that carried the sun for sunrise and sunset (hence why we see the sun 'move') . however, the horses took a different path, and since he was no expert in this and unable to control the horses, the sun dropped down towars heaven. As a result of its heat, many were burnt (hence why there are black and brown people) and some were deprived of the sunlight (hence white skin).

Answer 6

There is only one race. That is the human race.
The rest is made up by us, the humans.

You heard this adage: "Birds of same feather flock together".

Somehow the humans have this tendency to belong. Belonging to their own color, creed and background. This group of people call themselves a particular race.

Easily identifiable by this group, the first is the skin color. Then, they with the same skin color flock together, point finger at others and call the others different as though they are unique in themselves. They are not.

The whole thing is of no importance if you really think about it deeply.

It gets refined further within themselves according to their belief, which they call their "religion". And so it evolves. Such religious groups fight tooth and nail - go to war if necessary at enormous price - to prove that theirs is superior to someone else's belief.

Where and when will it end?. Never. That is the sad fact.

Answer 7

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Answer 8

The Human Race started the 'Long March' from Africa, where it had been born and moved ever outward to cover the whole Earth.

The difference between one group of humans and another is very minor.

In Portugal in the middle ages, about 12% of the total population were Africans. Nothing like this number of Africans live in Portugal today. What happened to them? They simply intermarried with the white European Portuguese and disappeared.

If a black man has children with a white woman, their offspring will be half white and half black. If these children then marry a white partner and have children, there will be little or no trace of their original African appearance.

Here in UK up in Yorkshire, there is a very large number of "white" people who have entirely African DNA. How come? These "white" people are descended from African soldiers of the Roman Legions stationed there in the 2nd and 3rd centuries AD.

The Oxford Uni are carrying out DNA research in the West of Britain, amongst the Cornish and the Welsh. To their astonishment they are finding thousands of people with DNA which puts their ancestory back to 12,000 years ago in Britain. In effect, their ancestors arrived in UK just after the last Ice Age. Blimey.

Every member of the Human Race owes his and her origins to their original African ancestors - we all started from Africa and just spread out. Of course this took hundreds of thousands of years.

Answer 9

There are only three races in the world.
Black (including browns)
Yellow (all Chinese looking people)
White (The white ones)
Rest you see is actually the by product of these three. That's where the nationalities come into play.
Besides we are all human so there shouldn't be difference for this..we are different from each other because I want to enjoy Sushi and I am not Japanese. Get it. It's for the tastes of the world. Different kinds.

Answer 10

I've always liked Morgan Freeman's reply to the little girl in "Robin Hood: Prince of Thieves" when she asked him if God had painted him and why. He said it was because God loves wondrous variety.

There are slight differences, mainly in pigment, though some have particular traits that are unique to their race.

I have heard that the sickle cell trait, a very serious blood condition that affects some people of African ancestry, was nature's way of developing resistance to malaria.

Some people used to think that Asian people were usually short, though I think Mr. Yao of the NBA has answered that old wive's tale pretty well.