[Phileleutherus Franciscus]

How does one species turn into another?

The most common way is that one or more groups of a species become isolated from the rest in a somewhat different environment. Over long periods of time, the isolated groups' genetic material is selected and drifts until sexual reproduction with the parent population is no longer possible. Voila': a new species.

[autumnraine]

So, you mean if robins and an owls get segregated on an island somewhere, they will eventually mate to become a whole new species of bird?

[goat granny]

It seems to me it would be a sub-species not a new species..I can understand an isolated population due to adaptation becoming a sub species, but not new...a sub species of a tiger remains a tiger, there are many different kinds of tigers but due to isolation they may become much smaller or slightly different in coloration but not a new species...

To believe one species can become another species doesn't make sense to me. The only way a mule can come into existence is paired with a donkey and horse, then you have a different species that 99% of the time is sterile, a hybrid. Those kind of matings bring about a different species, it doesn't happen via isolation... (does this make sense to anyone)

[Publius6961]

You've just presented a theory. One that is impossible to test, so it's impossible for it ever to become fact. Having blind faith in a theory, to the point of irrational anger, is a pathology.

Of course, you might say that the same applies to the existence God.
The crucial difference is that I won't debate you about it; I don't care if you agree or not.