>>41442562
100% yes, however its deeper then that, the whole crawl on bellies thing wasnt arbitrary or geriatric, the natural philosophers of the era actually understood the nature of muscle tissues in regards to how it generates power, muscle strand length is irrelevant all muscle power comes from the 2d cross section of the muscle, compared to the 3d volume of the body the muscle has to move, this is why in variable body plan power to weight ratios theres is a natural and calculatable maximum volume muscles can lift, and its why you dont really see healthy dudes over 7 feet tall today....
but when you actually hard into the math the heaviest body muscles could lift is about 20 tons on legs and 25 pounds on wings but as soon as you look into the fossil record theres animals waaaay larger, like fuck you can still eat the meat of 45 ton mammoths in some places in Alaska and Siberia.
tldr yes pre under dryas giants, but they cant live on earth today...... too big
ps you think ostriches just decided fuck flying ima walk? no they suddenly found themselves upon an earth where their wings could no longer generate lift.