DO YOU BELIEVE IN EVOLUTION?
- Thread starter keepinfish
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I believe in evolution, but I think it is far to complex to be discussed in a thread such as this. Its not just hey these animals look a like they must be related. It invovles many branches of science including some very sophisticated genetics. Its not as simple a concept as everyone thinks and has tried to make it out to be.
SovietFireExtinguisher;2884415; said:There is DNA evidence that in Humans those two extra chromosomes flipped over and fused. This is all readily on the Internet for you googling pleasure. Ie. there is your so called missing link. Unless what you are looking for is an upright walking super hairy ape/human type guy that makes grunting ape sounds. He was in my grade 8 gym class. His name was Peter.
First, show me a link (no pun) online for your evidence, as I don't see anything from the keywords you gave. Secondly, just from your statement it sounds like you are putting forth another theory that at our current technology level can not be proven.
Dan Feller;2884418; said:
According to the rules we aren't really allowed to discuss one part of this argument. We have proof that species adapt and speculation that single celled evolution is viable. I notice no one differentiates between obvious evolution that we all see and the single celled theory.
A pretty good explanation:
Researchers have long suspected that the Amazon River once flowed westward, opposite to its current direction, from the Atlantic zone to the Pacific, maybe as part of a proto-Congo (Zaire) river system from the interior of present day Africa when the two continents were bound in the giant supercontinent Gondwana.
50 million years ago, the split South America collided with the Nazca plate from the Pacific, creating the Andes Mountains and blocking the flow of the Amazon. The river became a vast inland sea, which gradually plugged, becoming a massive swampy, freshwater lake.
Over 20 species of stingray living today in the Amazon are closely related to those found in the Pacific Ocean and not with those from Atlantic, proving that the river once had contact with the Pacific.
10 million years ago, waters broke the sandstone to the west, allowing the Amazon to flow eastward. During the Ice Age, sea levels decreased and the great Amazon Lake rapidly drained into the Atlantic becoming a river.
Recently, Dr Drew Coleman, a geology professor, and Russell Mapes, a graduate student at University of North Carolina, Chapel Hill, have incidentally found geological backing for all these theories. They were studying sedimentary rocks in the upper Amazon basin when he found ancient mineral grains in the center of South America which clearly originated in now-eroded mountains in the eastern South America.
If the Amazon had continuously flowed eastward, like it currently does, much younger mineral grains in the sediments, originating from the Andes, should be found. "We didn't see any," Mapes said. All along the basin, the ages of the mineral grains all pointed to very specific locations in central and eastern South America.
These sediments of eastern origin were transported from a highland area that formed in the Cretaceous Period, between 65 million and 145 million years ago, when the South American and African tectonic plates separated.
At that moment, a mountain bordered rift, like the present East African one, formed in the Eastern South America and Western Africa. Those mountains sent the river westward, carrying 2 billion years old sediments toward the center of the continent. A low height, the Purus Arch, still existing, rose in the middle of the continent, running north to south, dividing the Amazon's flow - eastward toward the Atlantic and westward toward the Andes. The Andes rising sent the river back toward the Purus Arch.
Sediment from the Andes, containing mineral grains younger than 500 million years old, filled in the basin between the Andes and the Purus, the river was blocked in the lake and after that forced eastward. The team collected zircon samples, a common mineral easy to date in order to see the age of the sediment's source, from about 80 % of the Amazon basin.
Previous studies identified the same reverse flow, but only in parts of the river. "The finding, Mapes said, helps illustrate that the surface of the earth is very transient. Although the Amazon seems permanent and unchanging it has actually gone through three different stages of drainage since the mid-Cretaceous, a short period of time geologically speaking."
http://answers.yahoo.com/question/index?qid=20081116121701AAyZJ2e
Researchers have long suspected that the Amazon River once flowed westward, opposite to its current direction, from the Atlantic zone to the Pacific, maybe as part of a proto-Congo (Zaire) river system from the interior of present day Africa when the two continents were bound in the giant supercontinent Gondwana.
50 million years ago, the split South America collided with the Nazca plate from the Pacific, creating the Andes Mountains and blocking the flow of the Amazon. The river became a vast inland sea, which gradually plugged, becoming a massive swampy, freshwater lake.
Over 20 species of stingray living today in the Amazon are closely related to those found in the Pacific Ocean and not with those from Atlantic, proving that the river once had contact with the Pacific.
10 million years ago, waters broke the sandstone to the west, allowing the Amazon to flow eastward. During the Ice Age, sea levels decreased and the great Amazon Lake rapidly drained into the Atlantic becoming a river.
Recently, Dr Drew Coleman, a geology professor, and Russell Mapes, a graduate student at University of North Carolina, Chapel Hill, have incidentally found geological backing for all these theories. They were studying sedimentary rocks in the upper Amazon basin when he found ancient mineral grains in the center of South America which clearly originated in now-eroded mountains in the eastern South America.
If the Amazon had continuously flowed eastward, like it currently does, much younger mineral grains in the sediments, originating from the Andes, should be found. "We didn't see any," Mapes said. All along the basin, the ages of the mineral grains all pointed to very specific locations in central and eastern South America.
These sediments of eastern origin were transported from a highland area that formed in the Cretaceous Period, between 65 million and 145 million years ago, when the South American and African tectonic plates separated.
At that moment, a mountain bordered rift, like the present East African one, formed in the Eastern South America and Western Africa. Those mountains sent the river westward, carrying 2 billion years old sediments toward the center of the continent. A low height, the Purus Arch, still existing, rose in the middle of the continent, running north to south, dividing the Amazon's flow - eastward toward the Atlantic and westward toward the Andes. The Andes rising sent the river back toward the Purus Arch.
Sediment from the Andes, containing mineral grains younger than 500 million years old, filled in the basin between the Andes and the Purus, the river was blocked in the lake and after that forced eastward. The team collected zircon samples, a common mineral easy to date in order to see the age of the sediment's source, from about 80 % of the Amazon basin.
Previous studies identified the same reverse flow, but only in parts of the river. "The finding, Mapes said, helps illustrate that the surface of the earth is very transient. Although the Amazon seems permanent and unchanging it has actually gone through three different stages of drainage since the mid-Cretaceous, a short period of time geologically speaking."
http://answers.yahoo.com/question/index?qid=20081116121701AAyZJ2e
.... on The Big Bang Theory........ I saw a quote online while searching for the missing link that I thought was funny...., "Thank God that rock blew up" rofl
It's ok, you don't have to apologize to me because of you own ignorance. I don't mind. It's called a theory because it was just that until it was proven. DNA is still relatively new and some like you it seems still don't believe in the irrefutable evidence. That's ok by me, I'm not a world thought enforcer or anything. Believe what you will, wear Velcro shoes if you have to and a helmet. Just make sure you keep on keeping stingrays and we are all good. Cheers,Ullopincrate;2884396; said:
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