real life wrote:Hey Imposter,
I see you finally got the Cut and Paste feature to work. Good job!
What does this have to do with what we are talking about... the Evolution thread , ya know...
Wolf mentioned that bacteria have been observed to evolve. Got any evidence of this, other than just claims from your Cut & Paste that they did?
Well, no, any idiot
can see that he was merely backing me up when I said that bacteria isn't just one species, which was implied through what you said. Actually, no, implied isn't the right word. You phrased your sentence to make it look as if you thought that all bacteria was just one species.
Anyway, please don't take offence at the term idiot. I was just hazing you.
Well, I read in a New Scientist article that it had been observed, but I couldn't get access to it anymore, not to mention the fact that I've completely forgotten which issue it was in.
Doesn't matter anyway. The article probably wouldn't have provided references. New Scientist is funny like that.
I did, however, give you examples of speciation events or "macroevolution" in my previous post, and these are in organisms that have more cells than bacteria which is even better proof.
You're focusing on the wrong thing, though, real life. Evolution is about the creation of new genetic traits that are selected for by natural selection. This is what you call "microevolution", something that Creationists are hard put to argue against. However, what is macroevolution, except microevolution over a long period of time?
They both rely on the same mechanism. If microevolution is correct, macroevolution is also correct. They use the same mechanisms to achieve the same goal, survival of the fittest genes. The only supposed difference between microevolution and macroevolution is that one results in an organism that can still breed with the original specices, whilst the other cannot.
An event like this one below after a load of microevolution events would then result in the creation of a new species (macroevolution).
Quote:The Russian cytologist Karpchenko (1927, 1928) crossed the radish, Raphanus sativus, with the cabbage, Brassica oleracea. Despite the fact that the plants were in different genera, he got a sterile hybrid. Some unreduced gametes were formed in the hybrids. This allowed for the production of seed. Plants grown from the seeds were interfertile with each other. They were not interfertile with either parental species. Unfortunately the new plant (genus Raphanobrassica) had the foliage of a radish and the root of a cabbage.
If he can make it happen, it could happen in nature if given certain environmental conditions occur (which is what evolution is about).