bambu;6894193 said:Some species are not related and cannot be properly placed in a vertical or tree diagram.......
The consensus says it demands a re-examination of the theory..........
False.
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bambu;6894193 said:Some species are not related and cannot be properly placed in a vertical or tree diagram.......
The consensus says it demands a re-examination of the theory..........
bambu;6888394 said:A.J. Trillzynski;6878024 said:I had some questions about evolution once, like how much do leading Scientists really know? what's the very latest scoop on this shit? so I went to the book store and I discovered that there is an entire science out there called evolutionary biology. And in this field of science, there is a shit ton of material to read up on. You would be amazed at how deep this stuff goes, every day people are learning more about how evolution works and the facts are piling up at an extraordinary rate.
for people in this thread parading their ignorance like its funny, its really not. you might think its funny and get a few lol's here and there, but to the outside world you are embarrassing yourself. don't be stupid. just don't. Instead of asking dumb questions on a message board, read a book. have an intelligent discussion about whatever doubts you might have afterwards. trying to have a debate without even understanding the most basic basic shit though.. its absurd. don't be stupid, get smart.
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this shit will really open your eyes, man. you're not a Scientist, in truth. I'm not either. Just be honest, you don't know fuck all about evolution. But you would be AMAZED about how much IS KNOWN about evolution. you want documented evidence? read this book. you want to trace our lineage all the way back to primordial ooze with an actual evolutionary biologist holding your hand and explaining shit to you like a child the whole way through? read this book.
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"For much of the past 150 years, biology has largely concerned itself
with filling in the details of the tree. "For a long time the holy
grail was to build a tree of life," says Eric Bapteste, an
evolutionary biologist at the Pierre and Marie Curie University in
Paris, France. A few years ago it looked as though the grail was
within reach. But today the project lies in tatters, torn to pieces
by an onslaught of negative evidence. Many biologists now argue that
the tree concept is obsolete and needs to be discarded. "We have no
evidence at all that the tree of life is a reality," says Bapteste.
That bombshell has even persuaded some that our fundamental view of
biology needs to change."
http://postbiota.org/pipermail/tt/2009-February/004416.html
On The Origin of Species 22 years later, Darwin's spindly tree had grown into a mighty oak. The book contains numerous references to the tree and its only diagram is of a branching structure showing how one species can evolve into many.
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The tree-of-life concept was absolutely central to Darwin's thinking, equal in importance to natural to natural selection, according to biologist W. Ford Doolittle of Dalhousie University in Halifax, Nova Scotia, Canada. Without it the theory of evolution would never have happened. The tree also helped carry the day for evolution. Darwin argued successfully that the tree of life was a fact of nature, plain for all to see though in need of explanation. The explanation he came up with was evolution by natural selection. ...
From tree to web
"As it became clear that HGT was a major factor, biologists started to realise the implications for the tree concept. As early as 1993, some were proposing that for bacteria and archaea the tree of life was more like a web. In 1999, Doolittle made the provocative claim that "the history of life cannot properly be represented as a tree" (Science, vol 284, p 2124). "The tree of life is not something that exists in nature, it's a way that humans classify nature," he says."
bambu;6887337 said:Elrawd;6887139 said:Knock_Twice;6885303 said:man you been done and didn't provide nothing but Youtube clips of stanky ass monkeys beating down rocks and a bunch text that you thought sounded so deep lol...told you niggas if you can't explain it to a 5th grader or an 60 year old, then you needs to get off that soapbox you're standing on...you looking weak...
Species do not jump from one to the next within a generation. In simpler terms a clown fish does not just give birth to a flounder fish. It happens slowly over time. Just like when two humans come together and have children that have different genetics than their parents so do other animals. The genetics your kids have is random to an extent but is heavily influenced by the genes its parents have. The genes that are most useful to an animal are the ones that get passed on while genes that hurt an animal's chances of survival and reproduction do not get passed on because that animal either dies or it does not get to have kids.
Over a long period of time the genetics of an entire group of animals can change because some genes might be better than others. A famous example is the grey moths in England during the industrial revolution that were able to blend in with the soot covered foliage and avoid getting eaten. This started out as a mutation that very few moths had but because it was effective at preventing them from getting eaten it became common. This is just one change and does not mean another species was created. In order for a new species to be created an animal has to be dissimilar to another to the point of being unable to reproduce with it. In simpler terms their genetics need to be so completely different that they cannot biologically have kids together and produce offspring that are also capable of having kids. Some animals are similar enough to reproduce together, such as mules and horses, but their offspring are impotent.
When you think of evolution you have to think of it as having occurred over hundreds of thousands of years. If you cannot let go of ideas that the earth is only 6,000 years old then even simple explanations like the above will not make sense to you.
The experiments behind the peppered moth story are known to be flawed
The evidence that predation by birds has caused the change in frequency of moth colour rests on a series of experiments which are now known to have been flawed. Bernard Kettlewell, who carried out most of the studies, assumed that the moths rested on tree trunks during the day. However, it is very difficult to find wild moths in their natural resting places (most textbook photos are of dead moths glued to tree trunks). Painstaking subsequent observations of wild moths have shown that they prefer to settle in locations higher in the tree than those used by Kettlewell. Another problem is that Kettlewell released his moths at the wrong time of day. This meant that they were not able to settle naturally in their preferred resting site. Futhermore, he released large numbers of moths, which may have created an artificial magnet for predatory birds. The experiments were simply too artificial – the moths were released at the wrong time of day, in the wrong places, and in the wrong numbers.
Conclusion
School children need to learn that the peppered moth story provides evidence for changes of frequencies of different types within a population, but does not show that large scale evolution can occur. They should also understand that the original experiments behind the peppered moth story have widely acknowledged flaws, and some of these issues have been addressed in more recent experiments.
Bibliography
Proffitt, F. 2004 In defense of Darwin and a Former Icon of Evolution. Science 304:1894-1895
So it begins................
@ All you niggas.......
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Elrawd;6897459 said:bambu;6887337 said:Elrawd;6887139 said:Knock_Twice;6885303 said:man you been done and didn't provide nothing but Youtube clips of stanky ass monkeys beating down rocks and a bunch text that you thought sounded so deep lol...told you niggas if you can't explain it to a 5th grader or an 60 year old, then you needs to get off that soapbox you're standing on...you looking weak...
Species do not jump from one to the next within a generation. In simpler terms a clown fish does not just give birth to a flounder fish. It happens slowly over time. Just like when two humans come together and have children that have different genetics than their parents so do other animals. The genetics your kids have is random to an extent but is heavily influenced by the genes its parents have. The genes that are most useful to an animal are the ones that get passed on while genes that hurt an animal's chances of survival and reproduction do not get passed on because that animal either dies or it does not get to have kids.
Over a long period of time the genetics of an entire group of animals can change because some genes might be better than others. A famous example is the grey moths in England during the industrial revolution that were able to blend in with the soot covered foliage and avoid getting eaten. This started out as a mutation that very few moths had but because it was effective at preventing them from getting eaten it became common. This is just one change and does not mean another species was created. In order for a new species to be created an animal has to be dissimilar to another to the point of being unable to reproduce with it. In simpler terms their genetics need to be so completely different that they cannot biologically have kids together and produce offspring that are also capable of having kids. Some animals are similar enough to reproduce together, such as mules and horses, but their offspring are impotent.
When you think of evolution you have to think of it as having occurred over hundreds of thousands of years. If you cannot let go of ideas that the earth is only 6,000 years old then even simple explanations like the above will not make sense to you.
The experiments behind the peppered moth story are known to be flawed
The evidence that predation by birds has caused the change in frequency of moth colour rests on a series of experiments which are now known to have been flawed. Bernard Kettlewell, who carried out most of the studies, assumed that the moths rested on tree trunks during the day. However, it is very difficult to find wild moths in their natural resting places (most textbook photos are of dead moths glued to tree trunks). Painstaking subsequent observations of wild moths have shown that they prefer to settle in locations higher in the tree than those used by Kettlewell. Another problem is that Kettlewell released his moths at the wrong time of day. This meant that they were not able to settle naturally in their preferred resting site. Futhermore, he released large numbers of moths, which may have created an artificial magnet for predatory birds. The experiments were simply too artificial – the moths were released at the wrong time of day, in the wrong places, and in the wrong numbers.
Conclusion
School children need to learn that the peppered moth story provides evidence for changes of frequencies of different types within a population, but does not show that large scale evolution can occur. They should also understand that the original experiments behind the peppered moth story have widely acknowledged flaws, and some of these issues have been addressed in more recent experiments.
Bibliography
Proffitt, F. 2004 In defense of Darwin and a Former Icon of Evolution. Science 304:1894-1895
So it begins................
@ All you niggas.......
![]()
The example was not intended to show long term change but rather show how the traits of a population can change based on what is most effective for survival.
How can you accept the idea of change over short periods of time but reject that migration resulting in groups of animals living in isolation and developing independent of others would result in completely different animals?
Elrawd;6902857 said:The mysteries of abiogenesis do not disprove Darwinism
Elrawd;6902906 said:Is laughter your coping mechanism for when you are faced with some sort of cognitive dissonance between the story book you've built your life around and the progress of human science?
whar;6902920 said:While abiogenesis is currently it will probably be unraveled in this century. In fact I believe, given the state of current research, we will have scenarios to produce life from chemical action. By the end of the century we will be able to produce organism that functions to a need.