As you know S2, education and intelligence are two different things. Your relatively rare Internet presence is one that features both.
It's an education for me, but an uphill struggle to try to reciprocate. I'll keep trying.
And we can't ignore the fact that the people who wrote the bible had no knowledge of genetics whatsoever.
Not until Watson & Crick perhaps. But:
Gregor Mendel discovered the basic principles of heredity through experiments with pea plants, long before the discovery of DNA and genes. Mendel was an Augustinian monk at St Thomas’s Abbey near Brünn (now Brno, in the Czech Republic). He studied natural sciences and mathematics at the University of Vienna, Austria, but twice failed to obtain a teaching certificate, instead becoming a part-time assistant teacher and carrying out research in plant breeding.
His most famous experiments were done between 1857 and 1864, during which time he grew some 10,000 pea plants. Pea plants are hermaphroditic, meaning they have both male and female sex cells and usually fertilise themselves. Mendel was able to cross-breed the plants by transferring pollen with a paintbrush. He meticulously recorded a range of characteristics for each plant, including its height, pod shape, pea shape and pea colour. When plants self-fertilised, these characteristics remained consistent in the offspring.
https://www.newscientist.com/people/gregor-mendel/
Humans seemed to do pretty well breeding dogs (before Watson & Crick).
& a textbook example:
Heikegani
Species of crab
Heikegani (平家蟹, ヘイケガニ, (Literal meaning: Heike Crab),
Heikeopsis japonica) is a species of crab native to Japan, with a shell that bears a pattern resembling a human face (a case of pareidolia) which is interpreted to be the face of an angry samurai hence the nickname
samurai crab. The crabs are named after the once powerful… +
Westermarck effect: individuals who spend large amounts of time with each other under the age of six, raised together, regardless of relationship, tend to become desensitized to each other, and they will not generally develop sexual attraction to each other later in life. This idea is sometimes referred to as “reverse imprinting,” and it is named for Edvard Westermarck, a Finnish sociologist. [source: Wiki] *
It's not pure coincidence. When Japanese fishermen found crabs that looked particularly like a samurai, they'd toss them back into the sea, where over countless generations the species acquired the appearance of an angry Asian warrior. Collective artificial selection?
Regarding analysis of holy scripture:
I've found the most persuasive critics of holy scripture to be biblical scholars, you included.
"Every religion seems to me to produce a fundamentalist element, and they root that fundamentalism in the claim that they possess the only truth, and they're going to impose that truth on anybody that doesn't have it. Now we've done that as Christians in the past. We didn't like Galileo because we didn't think he quite understood where the sun was in relation to the Earth. We persecuted Jews. We did inquisitions. We had religious wars. We told women they were second class citizens. We today persecute gay and lesbian people constantly in the name of the god of love. I find that attitude appalling."
"I've had 16 death threats. None of them have come from Buddhists or atheists, they've all come from Bible quoting true believers, which I find rather interesting." Episcopal Bishop John S. Spong
Perhaps the last nail in the coffin came from the eminent scholarship of Bishop Ussher, who by meticulous scholarly analysis traced human origins (Genesis) back to October, 4004 BC.
Geological strata exposed at such locations as the Grand Canyon reveal this date is off by many orders of magnitude. Not likely that was Ussher's intent. But ...
* PS
I suspect in some cases mythopoeic explanations were inferred: - god is punishing me for boinking within my own bloodline, with a son with two heads -, or whatever.
They would have had rudimentary understanding of heredity, for example cause for alarm if a son more closely resembled the postman than the husband. The details came later.