>>12348531This
>>12348540Also, you can't leave the stragglers behind if you're the stragglers that get left behind. There's also the fact that the ancestors of Eurasians interbred with Neanderthals, who had larger cranial cavities by 200CCs on average. That would've gone a long way in driving hybrid vigor in those populations.
>>12348583The problem is they have a pack mentality so you can't separate the individual from the group. You can have a halfway decent discussion with one of them away from the rest of them but as soon as they congregate it's "Sheeeeiit ass bitch ass muhfugga, sheeeeeeit"