Originally posted by Alfheim
Why would it unlikely...if there are humans that were smaller than average why cant there be the opposite? The ancients may have found the bones but they can probably tell the difference between a T-Rex bone and a human bone, they werent imbeciles. 😬
It depends on your use of "giant".
They have found now extinct primates that were 9-10 feet tall, I think the term "giant" even found its way into the animal's taxonomy.
However, there are many reasons why a primate any larger than that wouldn't survive. For instance, large mammals require HUGE food sources, also, the primate anatomy has physical limits, and over a certain height, the structure of the skeleton and muscles becomes precarious.
It is possible there may be a 15-20 foot skeleton of a genetic abnormality of one of these huge primates, but we have not found it, and it would be so rare that it is unlikely we ever would.
It depends on the T-Rex bone. I'm sure their femur would look similar to ours, or their vertebrate.