Re: alpha males - there have been a lot of studies on modern hunting and gathering, gardening, and semi nomadic cultures. The Kung! People are a great place to start. To be very general, modern hunting and gathering people get like 60+% of their calories from plant sources. For the Kung! At least hunting and foraging are broadly gendered on man/woman lines - men do more hunting of large animals, women do more foraging. But it was recently found that a significant portion of the animal calories came from women and other foragers opportunistically taking small game they encountered while foraging. Basically if they came across a small edible animal they'd whack it with a stick and add it to their forage. This called in to question long standing beliefs about the separation of hunting and foraging behaviors and the belief that hunting was an exclusively man activity.

Important to note, though; the handful of extent modern hunting and gathering cultures have as many differences as similarities. Also, they are not primitive relics of a distant time. Like all humans they are adaptable and have built techniques and cultural technologies suited to exploiting their environment in the here and now. Their activities reflect the climate, politics, and available resources of the 21st century and may not closely resemble earlier hunting and gathering cultures.