I think both have their advantages and drawbacks.
Wait, is this an interview?
I’d be… uh… a t-rex… because, uh… I’m not afraid to… uh… take initiative?
We’ll call you.
If it’s T-Rex in present day no thank you. You would die a painful quick death due to not having enough air to breath even at sea level.
Oxygen levels wouldn’t be a factor. The “need high oxygen levels for large size” only applies to invertebrates with very simple breathing systems.
If trex had similar type of lungs as modern birds, they would do just fine. Bird lungs are super efficient (much better than mammals’ puny blind sack lungs) that enable them to fly at high altitudes.
So what you’re saying is that life…uh… finds a way.
T rex just for the life expectancy. I wouldn’t appreciate the media attention though, the tarantula would absolutely go unnoticed… Although… Thinking about it… Maybe Trex gets shot immediately.
I need more context information to give a proper answer.
Tarantula, because I have arachnophobia - why be anything other than what scares me the most?
I am tyrannosaurus wrecked