So, TMJs don't really take the Adam and Eve story as real or literal? Yes, no? Because ginormous dangerous predators being created, doesn't seem to make a whole lot of sense in a world where a very weak but intelligence creature, which is supposed to have been made in Hashem's image has been brought into this existence.
Well, one thing that I can say is that the above answer can come in handy every time something about what Hashem has done doesn't make any sense.
Remember we discussed this already.
1. Real story, BUT not from the English translation point of view.
2. i.e. if you want to know what the story says and what it is about, you will have to read it in Hebrew, or learn directly from somone who knows the Hebrew and can show you thousands of years of commentary about it.
3. Hebrew Torah text of the story is Hashem's commentary of it. i.e. Hashem told Mosheh what to write and how to write it. Hashem included it in the Torah for Torath Mosheh Jews to analyze and learn from. The account, being Hashem's commentary, has elements of allegory because Hashem has a more clear understanding of what took place on all levels and why.
In terms of giant predators existing. I can see lots of reasons for them to have existed. That is also me being a human, and not having the mind of Hashem that created an entire universe and admits that His [Hashem's] way of things is not the human way. It is beyond it.
So, if I were create a world with giant predators, this is why I would personally put them here.
1. I would first populate the world with masses number of species. Their life cycles through the food chain over generations would provide a natural method of giving the new planet the soil content that I want to it to have thousands, and millions of years in the future.
2. If I existed outside of time, and was in the past-present-future of my creations, then I would know what method works for all generations in a way that my creations would never know.
3. I would also create a system that cleans up after itself. I.e. I would not want there to be waste that exists in a way where the waste doesn't breakdown within a quick period of time.
4. If I wanted future genrations of my creations to be able to benefit from what exists on thier planet megafona is a great way to do it. The existance of Megafauna also helps regulate the environment that I want to exist.