Another funny thing? thats what they think happened, Keyword "think"! They have no idea if this is actually true or not, its all speculation
Another funny thing...
It is NOT mere speculation.
It is a logical conclusion drawn from piles of evidence.
You should really study up on all of the archaeological, sociological, and physiological evidences before you make such statements.
We know where homo sapiens evolved.
We know what environmental conditions were and what food sources were available.
We know what the nutritional requirements of the large human brain are.
We know what primitive man and pre-human hominids ate, since we have found their butchering tools and bones from food animals.
We know what different species of primates eat now, and how their diet affects their physiology.
Tell you what... read up on the subject, and come back with a fact based argument, instead of a baseless accusation of mere speculation.