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#282
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Also ROFL at your last sentence. You do realize that being able to observe something is a fundamental requirement of science right? Science: The intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment. Notice how it says observation AND experiment? It's rather important because if it can't be observed then it isn't science. Show me an experiment of a reptile producing something other than a reptile please? Oh it takes millions of years and therefor isn't observable so you can't actually show anyone that it can actually happen? How convenient. However and unfortunately for you, it's not science by the very definition of the word. Quote:
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#283
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#284
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Whenever a physically distinct portion of a population begins to mate exclusively with itself in order to preserve a morphological advantage, a new species is born. With enough time and enough change, eventually the classification system which humans created to name and sort the organisms we observe will dictate that a particular population can no longer be called a finch. Environmental conditions cause patterns to form in the variance of a new generation's physical traits. You are being fooled by both your inability to think on a time scale which dwarfs your existence and the categorical classification systems our biologists created to make sense of the continuum which describes these natural processes. Evolution doesn't occur at the snap of a finger. | |||
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#285
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__________________
![]() Tanrin,Rinat,Sprucewaynee | |||
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#286
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There is also: Bacteria make major evolutionary shift in the lab for those people who aren't convinced by the geologic record.
Evolution through natural selection has been observed in scientific settings. | ||
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#288
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Radditsu, the article in your link demonstrates an important idea we began to notice a few decades ago.
Marked changes within a population can occur in just a few generations. The rate at which evolution can occur is tied directly to the length of the organisms reproductive cycle. This means microevolution is absolutely something an individual can observe within his or her lifetime, especially within bacteria. Evolution still does not occur at the snap of a finger. Evolution does occur much faster than classical biologists assumed. They just thought you couldn't see the steps. | ||
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#289
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From the article Raditsu posted.
"In further testing to determine if the new bacteria were different enough to qualify as a new species, Lenski’s researchers found that beyond changes to the genes responsible for glucose and citrate consumption, other changes had occurred in the organism that had made it less fit to survive in a glucose-only environment, “We find they are getting less fit in the ancestral niche over time,” Lenski said. “I would argue that citrate users are — or are becoming — a new species.” So if these bacteria were not moved to a citrate rich environment, wouldn't they just die of in a few more generations? | ||
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#290
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__________________
Gnawlunzs Phrogphry
Master Angler, Baker, Cadger, Drunk "If you can't eat a frog, then eat two." | |||
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