Scientists believe we all came from the same origin in Africa millions of years ago based on DNA traces. Do you think it is possible that similar species (i.e. similar DNAs) may have developed in difference places on earth? For example: Do you believe butterflies or ants around the world were all originated from one butterfly or ant somewhere?
2007-09-22 11:29:24 · 12 answers · asked by Phil 3 in Science & Mathematics ➔ Biology
Scientists don't "believe". They look at evidence and make up their own minds.
I agree with modern thinking on the subject, that probably, based on fossil evidence rather than DNA, humans appeared in Africa.
It's quite possible for small changes in genetic make-up to appear in different places, but not very likely that big ones would.
Butterflies and ants are dozens of different species, so yes each butterfly and ant species came from an ancestral butterfly and ant somewhere.
2007-09-22 11:42:57 · answer #1 · answered by Tom P 6 · 2⤊ 0⤋
The Mitochondrial Eve study would have us believe that the origin of the human race was in Ethiopia. Fossils for early australopithecus creatures were found throughout the world. It is important to recreate the change of land masses from 5 million years ago when the human race branched off from the rest of the chimps and other primates. It is possible that all the australopithecus species and homo habilis, and erectus, despite all of their toolmaking abilities failed to survive certain ice ages. Only the most tropical or warmest places would allow habitation. the Ethiopia region may have been such a place. Chances are close relatives to the humans had been spread, but they migrated to Ethiopia and finished evolving into humans there
2007-09-22 11:40:47 · answer #2 · answered by Rishi M 2 · 1⤊ 0⤋
I can not agree with the theory because: it is said at first the earth was a single unit known as pangaea. At this time it is the time that species started to appear in the earth according to physiological and chemical laws. With time pangaea started to separate into different continents with time the continents were far away from one another to the extent that organisms could not reach one another. The human species at that time had evolved and some of human species were in America, Asi, Australia and Africa. As continents continued to separate then human species developed according to difference in environment. Why in America when the first nevigators arrived they found people who were living. And if the theory was to be true where did the redindians came from first ancestor were from Africa? How did they cross the Antlantic ocean?
2016-05-21 01:34:58 · answer #3 · answered by thao 3 · 0⤊ 0⤋
You can believe anything you like in the bible but this is not evidence.
The evidence for human origins is pretty strong by examining mitochondrial DNA in the female line.
Butterflies and ants have many similarities. It is clear they evolved from the same source and are in the insect family.
2007-09-22 11:35:53 · answer #4 · answered by Anonymous · 4⤊ 0⤋
I "have studied the evidence and am relatively convinced" (as opposed to "believe") that all humans originated in east Africa about 3-4 million years ago.
2007-09-22 12:41:27 · answer #5 · answered by David M 3 · 1⤊ 0⤋
There is a lot of evidence that supports that claim, both from DNA and the fossil record.
2007-09-22 11:35:42 · answer #6 · answered by Anonymous · 6⤊ 0⤋
I agree with Peter K
2007-09-22 11:40:52 · answer #7 · answered by ecolink 7 · 1⤊ 0⤋
Yes, the remains were found in Olduvai Gorge.
2007-09-22 11:34:19 · answer #8 · answered by New Moon Daughter 6 · 1⤊ 1⤋
We all are genetic copies of a more intellegent race from the planet niburu.....you'll see in 2012!
2007-09-22 11:33:21 · answer #9 · answered by Anonymous · 1⤊ 3⤋
I believe God created each indivual species specifically the way it is a few thousand years ago.
2007-09-22 11:34:34 · answer #10 · answered by Anonymous · 3⤊ 5⤋