Science Forums 2

[Moontanman]

[quote]

Originally Posted by questor

Let me say that this thread not is about creationism. It is about questioning the science or lack of it in the theory of evolution. If someone here can explain how genetic code can be changed to make a lemur become a man, I would like to hear it. The chimpanzee has a genome very similar to man, but no chimp has ever become a man, nor has a man become a chimp.

Questor, no man can ever become a chimp, no chimp can ever become a man. A lemur cannot become a man, you are asking nonsensical questions. The change from one species to another can happen over just a few generations but that would be a tiny change, the change from a lemur to a man or even from a chimp to a man would literally take millions of generations with thousands of different species between the two. The changes occur at the genetic level from environmental pressures acting on random mutations. You do understand that chimps are not the ancestors of humans don't you?

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I would assume the time line of life was well beyond the single cell life form and we have to deal with the problem of how genetic material was able to change enough to make all the new phyla down to new species of life in the last 500 million years
.[/QT here have been at least 5 major mass extinctions and then the Cambrian explosion 500 million years ago that seemed to repopulate the world.
UOTE

First of all no known mass extinction wiped out all phyla, or even most phyla. The mass extinctions of the past 500,000,000 years wiped out lots of species and required millions of years for new species to evolve. There were mass extinctions before that, when cyano bacteria started polluting the atmosphere with oxygen it was probably the biggest mass extinction in the history of life on earth but no complex animals were involved in that, only microbes. What is your problem with mass extinctions and the way they were repopulated by new species? How is that process unclear?