Here is a case of a child that was recently born with 6 functioning fingers on each hand and 6 functioning toes on each foot.
Wow, imagine an era where we couldn’t “correct” such mutations. In an environment where we depended more on physical dexterity or tactile ability who knows if a population of folks with this ready-to-go alteration wouldn’t become the victors in the local Darwinian struggle.
Of course, in a not too recent era, all the religious folks would get together and burn this little one for being an aberration, a witch or for just being different and hence, terrifying… My interpretation of part of the religious (s)creed: If it ain’t already known, it must be bad. 🙁