All those things are answered well enough by evolved programs ("instinct"), it's only hunting (and later war) where you get, yeah, adversarial training. Hunti

All those things are answered well enough by evolved programs ("instinct"), it's only hunting (and later war) where you get, yeah, adversarial training. Hunting in groups requires intelligence and communication to coordinate actions over time and space. With humans the idea is that we started with hand gestures and then added vocalizations. (I have no idea where I got that, nor how mainstream it is with anthropologists or anything. I hope I'm not just repeating "just so" stories...)