this post was submitted on 15 Nov 2023
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I don't think he would last long with our current oxygen levels, there is a reason why such giant creatures don't exist anymore.
On top of that like comments said if we just waited out he would starve to dead, even if we were not provided food.
*Edit
Well looks like I was wrong, thx for clarifying that out.
Really though the reason for big animals not being as prevelant anymore was really the oxygen levels Idk where I got that from.
But then it is really weird how the evolution meta didn't evolve back to the huge beasts we see on books, someone said in the comments that it was due to the mammals success, if so it puts things really into perspective.
Such giant creatures do exist. Larger ones even.
By far the most robust theory for the mass extinction event that wiped dinosaurs out is the asteroid theory. Not there being a sudden extreme change in oxygen levels lol.
I think people get confused because afaik the reason today's bugs may be smaller due to the lower oxygen levels.
Doesn't really apply to T-Rex tho.
Which has to do with how bugs breath through their exoskeletons which is a function of surface area. Lots of O2 can support larger surfaces area bugs.