Gilbert Syndrome
Philosopher
The spectrum of difference between Neanderthals and Squatch is as broad as the believers ability to chat bollocks 24/7.
Neanderthals were squat, stout and muscular looking lads, bit shorter than the average human.
So with 'Thals being under our own modern average, I can't see them evolving to outgrow us by as much as 6 feet (in some cases)