This time it was the Paleo diet that killed the Neanderthals
Last time, it was climate change. From Smithsonian Mag: A new theory links their fate to a meat-heavy regimen While humans have barrel-shaped chests and narrow pelvises, Neanderthals had bell-shaped torsos with wide pelvises. The prevailing explanation has been that Neanderthals, often living in colder and drier environments than their human contemporaries, needed more energy and therefore more oxygen, so their torsos swelled to hold a bigger respiratory system. … Alas, though fat is easier to digest, it’s scarce in cold conditions, as prey animals themselves burn up their fat stores and grow lean. So Neanderthals must have eaten a great deal of protein, which is tough to metabolize and puts heavy demands on the liver and kidneys to remove toxic Read More ›