There is an idea that this has to do with genetic mingling with fallen angels like what happened before the flood. In some cases animals were instructed to be eliminated as well. I dont know the mechanics of it. In Genesis, God says there will be enmity between the seed of the serpent and the seed of the woman. If you read seed as descendants or generations ot becomes an actual war to genetically corrupt God's creation. Also Noah being perfect in his generations could be interpreted as genetically uncorrupted.
There is an idea that this has to do with genetic mingling with fallen angels like what happened before the flood. In some cases animals were instructed to be eliminated as well. I dont know the mechanics of it. In Genesis, God says there will be enmity between the seed of the serpent and the seed of the woman. If you read seed as descendants or generations ot becomes an actual war to genetically corrupt God's creation. Also Noah being perfect in his generations could be interpreted as genetically uncorrupted.