while there may be some debate about relative proportions of hunting vs gathering, humankind has forward facing stereoscopic vision, as do all land based species that are primarily hunters.

Grazers have side scanning vision

in addition, the incursion of man into previously uninhabited (by man) regions — ie The Americas, Australasia etc led to the rapid extermination of large animals of all kinds

co-author of The End of More, in paperback and kindle on Amazon http://www.amazon.co.uk/dp/B00D0ADPFY email pagett.communications@blueyonder.co.uk

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