Pff. You call that flying?

I read that ages ago. Back in high school, in fact (I'm 46). I don't remember it except the chapter where time is a flock of birds that you have to try to catch to stay youthful. The children can catch them but always let them go and the adults can never catch them.

Maybe so. I don't think it's evidence that anarchy is the best solution, just that neolithic societies without hierarchies were still able to achieve amazing things.

But it's not like they were making cars and computers, this is a drainage system. It's very impressive for stone age people, but they are still stone age people.

Shameful that this is so upvoted.

Wheeled carts are not very practical without draught animals to pull them. And the one place they had animals like that, in South America, llamas and the civilizations that utilized them lived in the mountains where wheeled carts aren't practical either.

They say that Native Americans never developed the wheel. They clearly did. For sick dog skateboard tricks.

Isn't it amazing that ostrich eggs and ivory were able to be traded all the way to Iberia in the second millennium BCE? Prehistoric trade networks never cease to amaze me.

Not the science we asked for, but the science we need.

I've never been diagnosed with ADHD (although I've never been tested and my daughter has it) but this describes me very accurately. I've gotten through 46 years without any sort of help with ADHD, but maybe if I had been tested and gotten help for it, I would have been more successful.

Fun fact re the parasitic lice: Our head lice evolved with us, but we inherited pubic lice from gorillas much later.

I'm not saying a human and a gorilla got down together, but that's a lot more fun than thinking some idiot slept in a gorilla nest.