You really believe we hunted big game so much? With what? Sticks and stones? How did we catch them with our weak legs? How the hell did we skin them or eat their raw flesh? Cooking wasn't a thing for a long time.
And why don't we eat the animal meat raw? Don't you love it when you see the dead, rotting carcas all open and blody?
I sure don't. And neither would you, unless you were starving in the middle of winter.
For the b12 needs, eat some algae or even dirt. Yes, dirt. Plenty of dirt on a plant's root, which ancient humans ate like no tomorrow.
Ps just searched for ‘dirt b12’ on ddg and the first website is an ad for b12 supplements
There are videos of animals (like deers) so exhausted they just sit there while a lion eats them alive: they are not moving, they are not standing up, they are just sitting there watching another animal eating their guts alive. Just like that.
You can eat meat raw as long as it’s fresh (just killed), likewise we eat raw fish as long as it’s fresh. Carpaccio is raw meat, for example, and very popular too.
We were eating less meat - for sure - since cutting and digesting raw meat takes longer. But I guess we were also eating less of everything to begin with.
I mean there’s proof we hunted dinosaurs to extinction, so yah, we hunted down all the big game. Indians hunted bison, most everyone hunted elk and deer, humanity grew up on meat.
Edit: Eskimo hunting freakin’ whales, every Nat Geo special on tribal peoples show them hunting for daily meat, arrowheads and napping knives and spears found in ancient caves…
Gosh, really?
Really? How did we do that when all dinosaurs (except the birds) died off ~65 millions of years before our species even began?