That study was dreadful.
the obvious anachronism of inserting a bronze age weapon into a stone age story.)
a new thought. Why would Abel become a shepherd with so few people on earth? They didn't eat meat.
yeah, why would "god" be pleased with carrion as a gift? if meat did not become cosher for higher predators until after the flood? vegetarians all, except god?
next week the flood!! --while the angels were still twirling the swords, while Noah nursed his sore muscles from all that hand&arm powered woodwork. and lions, tigers eating straw, even in the ark, leaving the count of the animals at par for the trip.
If you Imitate Their Faith, you must have an Imitation Faith. There was no talking snake, twirling swords, flood.