According to evolution when the very first mutation appeared and the chemical tanks were just starting to form but were not yet functional they would not provide any survival benefit to the beetle. It would take many thousands of mutations over many millions of years to produce the end mechanism, but since mutations are random they could never follow a pattern to produce the end result, especially since the mechanism would not provide any survival advantage until it was fully developed. It would be like copying a computer program on a computer that randomly changes one byte during each copy process. You could copy the program a million times but all you will get is a non-functioning program not a program with more features. Life forms can adapt and change within a species because God built into their DNA the possibility of many variants, but one species can never evolve past these limits into another totally different species.
All observed mutations cause a loss of DNA information.
If evolution were true there should be multitudes of examples of animals which are between stages, for instance - there has never been a fossil discovered that shows how wings developed, never a fossil of a creature whose forelimb is halfway between being a arm and a wing. Christian Answers to Questions 3. Is there evidence of missing links 10. Caution advised on reliability of dinosaur-bird 11. We receive eternal life as a free gift.