[SoldierDad]

And this means what to me re: one animal evolving into a different species? Again, more subterfuge clouding up the original question. Where is the proof of this animal becoming a different animal?

[js1138]

Where is the proof that the earth orbits the sun? There are vast quantities of data, self-consistent interpretations, but no proof. It's just the best available explanation of myriad data points. Same with common descent. It is a self-consistent umbrella concept for millions of data points. There isn't even an alternate hypothesis -- something acknowledged by the supporters of ID. Isaac Newton is often cited on these threads a Christian who had the correct attitude toward science. Here's what he said about scientific reasoning.

• Rule 1: We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances.
• Rule 2 Therefore the same natural effects we must, as far as possible, assign to the same causes
• Rule 3 The qualities of bodies, which admit neither intensification nor remission of degrees, and which are found to belong to all bodies with the reach of our experiments, are to be esteemed the universal qualities of all bodies whatsoever.
• Rule 4 In experimental philosophy we are to look upon propositions inferred by general induction from phenomena as accurately or very nearly true, notwithstanding any contrary hypothesis that may be imagined, till such time as other phenomena occur, by which they may either be made more accurate, or liable to exceptions.

Take a look at these. No unnecessary causes. Causes are universal and constant. Causes observed in experiment are the same as those in nature. Established theories are considered true or nearly true until replaced by more comprehensive theories.

Every phenomenon required for evolution has been observed. Every piece of evidence gathered in the last 200 years is consistent with evolution. There are no competing theories.

[PatrickHenry]

Where is the proof of this animal becoming a different animal?

Yours is a common misunderstanding of evolution. In truth, the theory doesn't even remotely suggest that this happens. Individuals don't change. Populations change over generations. Please read this short essay. It may be helpful.

Evolution in Five Easy Steps.