All species can produce offspring unlike both parents, sometimes this is called mutation, but basically it's a birth defect. Imagine that there were white buterflies who bred other white buterflies but one produced an off white buterfly (slighly darker) and by being slightly darker it blended into it's eviroment a little bit better, avoiding being eating by predators, it survives to pass on it's dark genes. Let's say half of it's offspring are born off white as well, all of them have a greater chance of survival and when mating season comes, they all pass on their genes. Now let's say after several thousand years most of the butterflies are now off white, one might give birth to a butterfly with a birth defect of being even darker, but this helps it blend in even better than it's parents starting the cycle all over again. Over many years of this you could end up with black butterflies. This is just one small step in the evolution process.
2006-10-04
13:05:42
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4 answers
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asked by
jedi1josh
5
in
Religion & Spirituality