@brianjakub,
you need to read up a bit on stuff like gene sequencing (Sanger sequencing) as well as the replication methodology of DNA and RNA. Also specific "unzipping chemicals like DNA polymerase can all be found in an intro molecular biology text.
I find it fascinating that, not only are fossils of "the losers" separated by expanses of time, we have contemporary(alive today) different phenotypic daughter species that are separated biogeographically from their parent spcie by some environmental chqnge (like plate tectonics, closing of a rift valley or isolation by desertification or inundation like the Med.
How are troglodytic daughter species genetically related to non cave dwelling members of common species( determined by DNA sequencing). Is this not a neat bit of adaptation and taking over an available niche??
Cave spiders , fish, mammals and insects are basically all different from other cave spiders etc... as seen from different cave systems throughout the planet.
Lake Baykal has demonstrated the evolution of animals like carnivorous amphipods the size of giant shrimp. Since the lake is over 25 million years old, about 80% of its plants and animals re endemic to this one place on earth.
PS, also, Nowhere on earth is there any geologic evidence of a planet wide biblical flood.
You sound like a precocious young person who's trying to learn, yet you need to delve further into some of the principles before you get somehow "stuck" on "WHAT you need to believe or disbelieve.
The prinicple of Irreducible complexity hqs nothing to do with "engineers on the job"> IT has only to do with wht you can PROVE is an organisms lowest common denominator of its biology. SO far, this hs never been determined by ID "scientists"