Why did evolution not lead to Man migrating away from unsustainable/marginal areas of the Earth?

Question

We hear that fish and other marine creatures are migrating north because the water is getting warmer and is thus not the correct environment for them. One assumes that this is an instinctive reaction, part of the evolutionary way that life forms manage to survive.

Given our far greater intelligence, why then did Man stay in areas of the world such as Africa where drought and famine are rife? Those parts of Asia where flood and severe weather is common?

Current thinking is that Man first existed in Africa and that, thus, some of the species DID move to more suitable climes. What caused the rest to stay? Did Man evolve into two (or more)slightly different forms? Is African man, or Asian Man, EXACTLY the same species as European Man?

I am not asking for theories, but for a pointer to some work of reference where I can find out what current thinking is.

Answer 1

Since all races can interbreed, we're definitely all the exact same species.

Humans are a highly adaptable species. We're like roaches- we can live anywhere, and we do. Various populations have physically adapted to fit better into their environments, but there's nowhere on Earth that humans currently live that you couldn't move to yourself. That's because we're able to manipulate our environment to suit ourselves. Too hot? Strip down, or cover yourself in floaty, sunblocking clothes, and buy a fan. Too cold? Get some clothes, build a fire. We're a subtropic species by evolution, so we can survive just fine in deserts, once we figure out where the water is. We're clever, so we can also survive in the bitter cold, especially since fleece and space heaters were developed.

There aren't really any places on Earth that are constantly perfect. Island paradises have monsoons and typhoons, it gets cold in the far north and far south, there are droughts and famines everywhere. Earthquakes, tornadoes, floods- you're going to have problems where ever you live. There aren't too many places that kill off everyone who tries to live there. As long as population growth pushes people into all these places, people will live there. We've managed to thrive in the Arctic, the Sahara, Australia's outback, and Missouri. We're hardy little buggers.

Answer 2

There are only two species of man left on Earth. Homo Sapiens and Homo Erectus. The surviving Homo Erectus lives in the Asia area and can be spotted by a few distinct features:
(1) They are TALL - usually 6' tall and over
(2) They have pale skin
(3) They have blue eyes and blond hair

They are the last remnants of the CroMagnon line of Homo Erectus. They were just about slaughtered a few centuries ago by the Chinese dissenters moving to Japan - that is their homeland actually - the hot springs of Japan.

When they breed with Homo Sapiens, their kids are Homo Sapiens.

And that's it... Everyone else in the world is Homo Sapiens...

Answer 3

Climates are constantly evolving, too. What is lush and green today might have been desert long ago. And, what is desert today, had periods of greener, wetter climate. One of the reasons humans survived and stayed around as a species long enough to evolve is that we ADAPT so well. The challenge of adapting, such as during the Ice Age in Europe about 8000 years ago, actually contributed to human intelligence and took us out of the food chain (we ganged up in that inhospitable ecosystem against big predators and they started to get tinier ever since.)

Answer 4

Migrating away was not that simple back than. During the iceage, most of the continents were covered in ice, and you couldn't just catch a plane to the bahamas. People had to learn to adapt to their situation. There was a pressure to evolve into a more intelligent creature we are today.

Answer 5

Stephen Oppenheimer in "Out of Eden" traces mitochondrial DNA, and concludes that early man was a beachcomber, following the coast from Aden to India then through Indonesia to Australia. The swing back to the west to colonise Europe was a relatively late development.

Answer 6

Men try to migrate but the governments in the other countries stop them. Som manage to immigrate illegally.

Answer 7

(worst case scenario) the earth is about to blow up, there is a space ship ready to go where ever. but only 100 poeple can get on the ship. someone has to stay behind and the most succesfull poeple will go.

Answer 8

In essence, believing in evolution takes faith. in case you have self assurance the basis that issues have been superior and developed with the aid of the years, then you definately can not have self assurance that God Created existence because it relatively is. you're surely asserting that God is a liar in case you will no longer have self assurance His be conscious the Bible. How extra helpful for devil to allure to human beings faraway from believing in God than to get human beings to think of that God is a Liar. after all, devil is the daddy of Lies in accordance to God's be conscious. in case you refuse to have self assurance the certainty for what it relatively is, you refuse to renowned which you desire to be saved. basic good judgment.... To have self assurance in evolution will become it is very own faith...and it robs God of who he's and what He has completed for us. of direction you have already found out that it relatively is yet between the numerous kit devil makes use of to tutor us from God. Twisted good judgment is yet another one.

Answer 9

Becominghuman.org

Answer 10

all sustainable areas were taken by other humans.

and no, they couldn't get along b/c ground can only feed so many (no chemical fertilizers, remember?)

All races are same species since they can cross-breed.