Yes I realize that but aren't they still all flies.
Aren't humans, chimps, and baboons all still primates?
Aren't humans, bears, and echidnas all still mammals?
Aren't humans, birds, and fish all still vertebrates?
Aren't humans, trees, and amoeba all still eukaryotes?
If evolution is true, then they should still be flies BECAUSE THAT IS HOW EVOLUTION WORKS. Why is this so hard to understand? You don't detach yourself from branch you are on and re-attach at the trunk of the tree of life. YOU STAY ON THAT BRANCH.
Isn't this just showing a lot of variety within the fly shaped creatures.
Yes, just as . . .
humans, chimps, and baboons show a lot of variety within primates.
humans, bears, and echidnas show a lot of variety within mammals.
humans, birds, and fish show a lot of variety within vertebrates.
humans, trees, and amoeba show a lot of variety within eukaryotes.
THAT IS WHAT EVOLUTION DOES. Evolution increase the diversity and variety of a branch through time.
They all still have fly shapes with fly wings and fly antenna and fly eyes.
Humans, chimps, and baboons still have primate shapes.
Humans, bears, and echidnas still have mammal shapes.
Humans, birds, and fish still have vertebrate shapes.
Humans, trees, and amoeba still have eukaryote shapes.
THAT IS WHAT EVOLUTION DOES. It is DESCENT WITH MODIFICATION. As time moves on, you get modifications of the shape that preceded it.
If there is a common design then certain parts are going to be the same with many things.
The difference is there is no expectation of a nested hierarchy as there is with evolution. Since we observe a nested hierarchy, it is evidence for common ancestry, not common design.