Why Do We Sleep in Trees?

No one could really explain to him why these things happen. So we started poking around and there were some theories having to do with like, physiological changes in your body. But that kind of explanation didn't really satisfy. It really doesn't say, well, why? What was its function? And as I started to look at the literature, I saw that we had a very long history sleeping in trees. If we go back to Australopithecus afarensis, this is Lucy three million years ago. Lucy was bipedal. I mean, walking on two legs. She lived in the trees, but unlike the other primates, she would sometimes go down to the ground. On