Chew On This: Slicing Meat Helped Shape Modern Humans

Miss Manners and skilled prep cooks should be pleased: Our early human ancestors likely mastered the art of chopping and slicing more than 2 million years ago. Not only did this yield daintier pieces of meat and vegetables that were much easier to digest raw, with less chewing — it also helped us along the road to becoming modern humans, researchers reported Wednesday....
http://www.npr.org/sections/thesalt/2016/03/09/469676852/chew-on-this-slicing-meat-helped-shape-modern-humans?sc=tw