I will not comment on others answers, I will tell you what I have seen in Discovery Channel. They told that during the Ice age, the earth was frozen and the movements occur, the man, animals migrate to as far as Australia by foot.
2006-06-24 06:41:03
·
answer #1
·
answered by ashtre2000 5
·
2⤊
1⤋
The current theory is that humans (himo sapiens) evolved in Africa and then spread out to the different continents. The precursors of humans the austrolopithicus and the other homo species ergaster and habilis showed similar distribution patterns.
The migration would have been barely perceptible - each new generation of humans would have spread the range a few kilometers.
In National Geographic March 2006 there is a report on the trail of human DNA around the glove
From the DNA markers it looks like Humans evolved in East Africa and then spread out from there. They had spread across Africa 150 000 years ago. The quickest route from Africa into Asia and Europe would have been across the Sinai peninsular and about 70 000 years or so ago humans moved into Asia. During the period that humans have been spreading out from Africa there have been ice ages. During an ice age the sea level drops as water is taken out of the the sea and piled up in polar ice caps. (The greenland ice cap is a remmnant of the last ice age) With the drop in sea level land bridges would be created between the other continents. Rivers would dry up and major river mouths would not be the obstacle they are today. Humans also developed boating and fishing skills early on.
Fossil evidence shows that humans reached Australia 50 000 years ago. The hard evidence of the route they took is probably under the sea that rose after the migration passed through the area. The humans on the Indonesian and other islands, between Australia and Asia, have DNA links to Asia.
There may have been more than one human migration into North America. North America was populated with the most ferocious carnivores and early humans may not have survived. Once humans reached North America (possibly 20 000 years ago) they would have migrated downwards to South America along the West coast.
Once humans had populated the continents the fittest survived. Short stocky bodies in cold climates like the inuit to retain heat in the body. Long thin bodies in hot climates to get rid of heat. Various skin colours to resist or help gather ultra violet rays. In malaria areas blood platelets became sickle cells.
2006-06-24 08:12:23
·
answer #2
·
answered by Anonymous
·
0⤊
0⤋
They didn't evolve on continents that didn't have apes, they all evolved in Africa and went wandering off, using boats, crossing stretches of land that have since become underwater etc.
And who are all these idiots that claim humans didn't evolve from apes but shared a common ancestor? What do they think we evolved from? Bats? Sheep? Giraffes?
Of course we evolved from apes, f*ckwits! Apes were around for millions of years before the last common ancestor of chimps and humans appeared. Don't bother arguing, I have a PhD in Zoology.
2006-06-24 11:44:44
·
answer #3
·
answered by Rotifer 5
·
0⤊
0⤋
Well what happened really was we all were supposed to come from the primordial soup, but God drank it, so what happened instead was some apes evolved to have wings (like the monkeys in Return to Oz I think it was) and flew to the other continents where they evolved into humans with wings of course then what happened after that was that the winged humans tried to fly to the sun, but their wings got burnt off and when they all fell down they landed on different continents.
2006-06-24 08:00:51
·
answer #4
·
answered by Mummy of 2 7
·
0⤊
0⤋
If Humans Evolved from apes ,Why Do We Still Have Apes
2006-06-24 06:38:23
·
answer #5
·
answered by John W 1
·
0⤊
0⤋
Humans DID NOT evolved from apes, humans share the same ancestors with apes, and chimps. Our common ancestors separated with the great apes more than 10 million years ago. And chimps and humans separate from their common ancestors about 7 million years ago.
It is long after we became separate species, that we human venture out of Africa, and into Europe and Asia.
2006-06-24 06:34:50
·
answer #6
·
answered by sharpshooter 5
·
0⤊
0⤋
Because humans didn't evolve from apes. The theory is that they evolved from a common ancestor and then moved around.
2006-06-24 06:19:57
·
answer #7
·
answered by Anonymous
·
0⤊
0⤋
After Humans had evolved enough to work out how to get to other continents they then moved to inhabit the other continents that hadn't been inhabited yet
2006-06-24 06:28:17
·
answer #8
·
answered by Anonymous
·
0⤊
0⤋
Plate tectonics and migration.
BTW Darwin said they evolved from a common ancestor as I remember rather than directly from apes.
2006-06-24 06:19:29
·
answer #9
·
answered by Anonymous
·
0⤊
0⤋
Everyone is wrong. The world was made up of one big land mass called Pangea, then it broke up, because of tetonic plates, and whatnot. That's how it happened.
2006-06-24 06:24:09
·
answer #10
·
answered by Anonymous
·
0⤊
0⤋