A mutation, a copying error, that doesn't just result in a deformity, but in an actual fully-functional well-designed limb, complete with articulating bones, sensory organs, and everything else? Doesn't that seem just a *little* far-fetched?

But let us assume that a simple 'copying error' *can* result in such sweeping yet well-designed changes, that are passed along to descendants - okay, and isn't that exactly what evolution is?

But a 'simple copying error' would result in a tumor or cancerous cells or warped bones, something like that. Organized data being replaced with random data and chaos. A well-designed functioning limb replete with all bodily constructs and a connection via nerve endings to the brain is not a simple copying error. Well, I suppose it's *possible*, if it had only happened once, but the odds that that much random data would just happen to fall exactly into place to produce such a thing, and have it be hereditary, that's gotta be monumentally against the odds.

Again, the simplest explanation - that the data came from the parents - is most likely the correct explanation.

To give you a perspective on just how unlikely it would be for random data to produce such a thing as a functioning tail like that, it surely takes 100k of genetic data for the whole ensemble. So, the odds would be something along the lines of 2^800,000 power against that. For me to even type that number as a percentage, I'd have to devote my entire life to doing just that. *Highly* unlikely. And for it to happen multiple times *and* be inherited across generations? Even worse odds.

But if inherited mutations of such complexity *are* possible, without getting the data from ancestors, then tada, you have evolution!