Chuck77 writes:
Ok, so this seems like what you are saying. If a horse had wheels as legs, this hierarchy would be falsified - so to speak.
Nested hierarchies wouldn't be falsified, they just wouldn't exist :-)
Nested hierarchies are simply the demonstration that one thing evolved from another - like in a family tree. Finding a horse with wheels or wings or that layer eggs, would be like finding a three legged martian as your great grandfather - it doesn't fit in the tree; doesn't belong.
If all of life couldn't be categorised into families with similar features BUT WITH NO FEATURES FOUND IN NON-RELATED GROUPS (the nested hierarchy) then common descent could not possibly be true.
What's the big deal? Why is this at odds with special creation? What would special creation predict, wheels?
The big deal is that nested hierarchies prove common descent.
And, incidentally, they show that a designer is not necessary to produce the variety of life that we find on our planet.
It also shows that if a designer was involved, then he made his design look like it happened via a process of evolution - not by design as a human designer would do it. (A human designer might well put wings on a horse or wheels on a pig - he'd take the best designs he had for say, an eye, and use that in every animal needing an eye - he wouldn't use sub-optimised parts if he had a better model; which is what we find in nature.)
Life, don't talk to me about life - Marvin the Paranoid Android