I am sure I read it in a national geographic article titled sugar over ten years ago. I have been made aware the liver processing into fat and body breaking it down is more complicated than that, that is interesting it can make it straight into glucose.

Before the cold snap, the monkeys were in tropics, fruit is constantly on the trees, tropical forests are completely different than temperate ones too, there is incredible diversity in trees down there, up here it’s the same few trees, they might not have 2 of the same trees on an acre. They flower differently, figs in the tropics for instance, they bear fruit year round, constant. So there was no need to use the fructose, I would be interested to learn more about it though, as other animals can use it and when and how they were able to as we know. There was no shortage of fruit in those tropical forests, limits on populations were likely more from disease and predation than food shortages.

But national geographic is a reliable source, or was, back then. Haven’t seen them in a while, not really since news corporation bought them, I know they sold them off later but that’s when I quit them.