why are there so many different species of humans on our planet?

Question

why are certain species more adapted to the colder climates and others more at home in hot climates, why do the eye's vary so much in shape, skin colour and texture variations are also very prominent depending on geographical location, and finally the height and build variations, all this and we are expected to believe with blind faith we are all decended from "adam & eve".

Answer 1

There is only one species of human beings alive today on Earth. That is why you have interracial couples having perfectly healthy babies. Human physiology is highly adaptable: that's why we're the dominant species of the planet. In Africa, you have tall people with dark skin. The tallness provides more skin surface area for heat to escape, and the dark skin protects the person from the sun. Darker coloring=more sun and vice versa. In the northern part of the globe, there is less sun, so you have people with light skin, blond hair, and blue eyes, and they're a lot shorter since they don't need to get rid of body heat to be comfortable but instead need to conserve it. A physical anthropology book will expand on this and give you more examples, but it boils down to the human body adapting to the climate. That's all it is. As for Adam and Eve, I have no idea. There are creation myths in every society on Earth, and they are all so buried in myth and history that we can't really truly know. We all have our Adams and Eves.

Answer 2

I am always amazed to read things such as you wrote.
First of all, Humankind is only ONE species.
Whether you subscribe to Religion as an explanation or the Atheists "Out of Africa", ALL have the same formula: there were only a few humans and every one alive today (and all the billions since those original humans until now) are descended from Adam & Eve (or whatever religion you might read about) or those few from "Out of Africa".
If you grow a garded for several years in a row, you will find a great difference from year to year . When you consider the great differences in where humans live, the great differences in weather, food eaten, etc., it really does not seem strange at all.
As to skin color, blacks who have lived in cold climes for thousands of years are still black; whites who have lived in the tropics or deserts for thousands of years are still white. Red, yellow, black, white and brown people were created; they still are respectively, despite intermarrying.
Read some good books by anthropoligists and historians. Perhaps you would enjoy
"The Neanderthal’s Necklace, In Search of the First Thinkers", Juan Luis Arsuaga, Translated by Andy Klatt, Illustrations by Juan Carlos Sastre, Copyright 2001 by Juan Luis Arsuaga, Translation Copyright 2002 by Four Walls Eight Windows.

Answer 3

Okay,Cookie
1 There's no such things as "species" of humans.WE are the species and the species is called,"Homo Sapiens"
2 The reson why we're all so different in skin color,eye color hair texture,ect is because Homoa Sapiens,many of whom left Africa (YES AFRICA IS CONSIDERED THE BIRTHPLACE OF HOMO SAPIENS),they split off from each other to find other places in which to live some warm and very dry some cold and with less sun,etc.Over millenia,we had to adapt to our new surroundings which caused the differences in our appearence all over the world. Can't believe people are STILL asking this question,but.there ya go!
TL

Answer 4

As some already pointed out there is only one species Homo Sapiens. We all come from africa, that's where the first homo sapiens enters the scene, as they began to migrate to different climates they began to adapt to the changes through natural selection.
In this link it explains the migration of man to other continents
http://en.wikipedia.org/wiki/Recent_African_Origin

Answer 5

I've never heard of other races as being different species. Do they have different DNA or something? homo sapiens are one species...sorry.

Answer 6

We are made from the stars !
I am a unique member of a species, which you call Human
I might have been born here on Earth, but that does not make me an Earthling !

Answer 7

One species with 3 forensic sub-identifications.
There are caucasians; negroids; and mongoloids. They are identified by their facial bone structure, and some other bone structures.
Otherwise, your questions is sensless.

Answer 8

Not sure what you mean but, There are only 3 basic ethnic types of person on the earth. These are Negroid, Mongoloid And Caucasoid. If you look carefully everyone fits into one or the other. The Chinese, Japanese, Eskimo, Inuit, South sea islanders, Native Americans etc, are basically Mongoloid (not Downs syndrome) Africans, West Indians, African Americans etc are Negroid. The white races the Asian races such as Indian, Pakistani, Arabs, etc are Caucasoid. People wrongly think that Caucasian means white, this is wrong because Asians are Caucasian.

Answer 9

There is only one species, there is just variation as with every other species.

Answer 10

we are all the same species but the varity of variation which i think you speack of is derived from our bodies adaping to their enviorment. darker skin absorbs uv more than fairer skin.