Why do we have different "races" anyhow, What is the advantage biologically ?

Answer 1

We don't actually have different races - just variations in one human race. However, the variations are important for human survival because they are based in adaption to different environments. The melanin rich skin of people from Africa helps them deal with radiation levels (sunshine) near the equator. Flat faces and narrow eyes help people from the deserts of China survive cold, blowing snows in winter. The many, many variations of appearance are because of cross-cultural contacts, migrations and "mating preference" appearances. The same is true for birds, dogs, cats and all the rest of animal life on this planet. It is only our cultural bias and natural fear of things "different" that keep the reference "races" alive.

Answer 2

Well the most apparent difference to most people is skin color. Skin color is due to Melonin (pigment in the skin). Cultures that developed in areas that are greatly affected by the sun (most notably African decendents) have a much darker skin color because their bodies needed the protection. It's the same concept of my white body laying in the sun and getting a tan. My body increases the Melonin for a short term protection from the Sun. There are other traits that are more common to certain races, but not exclusive (which is why race is a general term not used much in science). Sickle Cell Aneima for example is more common in persons decended from the African continent. While the disease can cause major health problems in the Homozygous condition, the Heterozygous condition offers the carrier some protection from Malaria, which is much more common in the area where this disorder originated. So there are some advantages to certain traits.

Answer 3

races, well, they're like a gun that is designed to fire ten thousands bullet per second shouldn't be used to kill a single person, but a sniper rifle that can only fire 1 bullet per minute is not suitable to kill one hundred people. So basically there is different races, because each races have their own traits, which is bioligically an advantage because they survive better from their environment.

It is environment that creates races. Human adapt themself, for example, a dark skin is suitable to people living near equator, where the sun is hot all year long, while it is not needed outside the equator.

Answer 4

Ask The MAN-UP-STAIRS

Answer 5

I believe it has to do with the amount of sunlight you recieve. Further from the equator you want more sunlight so that you create vitamin D. Closer to the equator you want darker skin to protect against UV radiation.

So differant races evolved differant pigment that either protects you from sunlight or allows you to absorb it better.

Answer 6

If you are going to ask that question, you should also ask why do we all look different?

Any how, depending on where your ancestors were born in the world determines your skin pigmentation because pigments in the skin protect again the sun or whatever conditions the land where our ancestors came from.

Answer 7

Biologically-millions of years from now races will all look the same

Answer 8

The farther from the equator, the lighter the pigment. An evolutional process that occurs over many generations.

Answer 9

The Human body adapts to its environment,sunny hot climate,dark skin to protect the body.Cold climate,longer faces,bigger noses,pale skin to absorb Vitamin D from the sun.Our bodies need sun light like plants,maybe not as much, but our bodies have become dependent on it.

Answer 10

Natural selection, same as with any animal species. Pigmentation is one aspect of it, but theres also height, hair (type and density), etc. All derived from random mutations that were beneficial in a particular envrionment.