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originally posted by: flanimal4114
a reply to: boymonkey74
He dose a good job but on debates like this it some time will not end, that's why I'm thinking of leaving this thing to some one els to defend. Any how, saying " this is out right wrong " and " this is not correct at all " with out taking into account misspells and with out getting the idea of what some one is saying, ignorance to common sense.
I see what he is saying and have tried to find common ground on which we can both come to a conclusion but he dose not want to find it and is argumentative instead. That is why I would like a live chat room n order to come to an agreement.
Are you like this to everyone with an opinion differing to your own???
So what is speciation? It is a process that occurs when a group of living things that originally were freely interbreeding, become divided into subgroups that sooner or later no longer breed with one another. The newly formed non-interbreeding groups are technically a new species. But note carefully: After this happens the squirrels on either side of the Grand Canyon are still squirrels, Chichlid fish are still chiclid fish, Larus gulls remain gulls, Drosophila are still fruit flies, etc. So this is not evolution. The plants and animals are still actually within the one kind.
Galapagos finches are a well-known example of non-evolutionary variation. They have been represented as the classic example of speciation, with birds on the different Galapagos Islands being classified into different species according to their beak shapes. However, when circumstances have caused a change in available food and many of those with the wrong shaped beak shape have died out, some have survived by breeding with different beaked species, thus proving they are still the same ‘kind’ of finch no matter what shape their beak was, and regardless of what species we have labelled them. Genome studies have shown there is a gene flow between the different finch species, confirming they do breed with one another.
In some plants, speciation occurs due to genetic polyploidy, i.e. incorporating two complete sets of chromosomes into a hybrid offspring between two parent plants. The offspring can no longer breed with the parent plants, so technically are a new species. This is not evolution. No new genes were produced. Existing genes have just become mixed. Sometimes this process can be deliberately done by plant breeders.
New butterfly species made in lab, according to reports in BBC News and ScienceNOW 14 June 2006. Heliconius heurippa is a butterfly with vivid red and yellow patches on its wings that look like a combination of the patterns on two other species of Heliconius butterflies, suggesting that H heurippa was a hybrid of the other two. To test this theory a team of researchers at the Smithsonian Tropical Research Institute in Panama bred the other two species together they produced offspring with the wing patterns of H heurippa. The newly bred butterflies were found to breed true for three generations. This study has led evolutionary biologists to claim that hybridization can be a means of evolving new species. Although it is difficult to prove it happens in the wild, scientists have suggested that the swordtail fish, African cichlid fish, Ragoletis fruit flies and the American red fox are the product of hybrid speciation. BBC Editorial Comment: The fact that two species of butterfly can produce fertile offspring indicates that they and the offspring species are actually all of the one kind, even though they may not breed together in the wild.
If anything, speciation is the opposite of evolution. Whenever a large and varied group of living creatures has been split into smaller and less variable sub-groups, regardless of the reason, each of the less viable (often called specialised) subgroups is more likely to die out if the environment changes. This is because natural selection, (another real but non-evolutionary process), will eliminate any organism that does not have the appropriate genetic variations needed to survive in the new environment.
originally posted by: Barcs
originally posted by: hudsonhawk69
I'm not tying to disprove evolution. I'm trying to highlight a simple concept as to why speciation can potentially never be solely responsible for the diversity that we see in the biological tree of life. It's a simple concept that would appear to be supported by the evidence at hand. All proofs of speciation depending on your stand point are not significantly different from the previous generations. The simple example that I provided gives an understandable explanation as to potentially why this is true.
You cited a very poor example that has nothing to do with evolution. Saying that a computer chip, programmed for a specific function doesn't change into a stereo is beyond bogus. That isn't even remotely close to how genetic mutations change a genome. Try using a relevant example or how about this; actually answer the question of why the accumulation stops at a certain point. Irrelevant metaphors aren't related to science, sorry. Speciation isn't a mechanism, it's an observation of change that is enough to result in a new species, something that has been done numerous times in a lab. The mechanism is genetic mutations and natural selection.
A mechanism is a device designed to transform input forces and movement into a desired set of output forces and movement.
originally posted by: Barcs
originally posted by: flanimal4114
a reply to: boymonkey74
He dose a good job but on debates like this it some time will not end, that's why I'm thinking of leaving this thing to some one els to defend. Any how, saying " this is out right wrong " and " this is not correct at all " with out taking into account misspells and with out getting the idea of what some one is saying, ignorance to common sense.
HudsonHawk tried to poke holes in evolution using a simple computer chip saying that it didn't turn into a stereo or radio. The problem with his argument is that the code inside the chip does not alter the physical chip itself, so it cannot be compared with how genetic mutations change a genome and affect a creature's morphology. It is straw grasping to the extreme.
originally posted by: flanimal4114
So can I make that a mission just to gather reserch of the cell, and from the we can all start to form conclusions???
originally posted by: Teikiatsu
Counterquestion: what is the mechanism to create speciation, when do the separate populations lose the ability to interbreed? How many more generations of specialty dog breeding, food animal domestication, or horticulture will it take to make truly new species?
How many more generations of specialty dog breeding, food animal domestication, or horticulture will it take to make truly new species?