If someone suggests that a coherent, interdependent system of systems arose by chance, they’ll need to back that up with a detailed engineering analysis.
These findings challenge Darwinism because species that are clearly unrelated by common ancestry employ common engineering principles.
I believe the intelligent design perspective may offer insight into the peculiar inability of central nervous system tissue to regenerate.
Above is a picture of three children in the 1950s. One of them is me, the other two are not.
Two ears provide the ability for mammals to tell the direction of sound, involving multiple finely tuned mechanisms.