What specific physiological adaptations have taken place? This alleged instinct to hunt, kill and eat animals, what does that feel like? I have never felt that. The instinct to pick fruit off of a tree and eat it, I can relate. High probability of constant malnutrition? I am 64, the last 36 of which I must just be lucky to beat the odds living my illogical fantasy. 

 Bless your heart. Good for you little buddy. Have a wonderful day.