What signs of modern man were predetermined millions of years ago by the arboreal way of life of his ancestors?

Such signs include opposing the thumb to the rest to grab tree trunks and branches; binocular vision to more accurately determine the distance to objects; a decrease in the number of cubs, but a longer care for them. It should be noted that newborns have a grasping reflex. Apparently in ancient times he was needed to grab onto his mother’s fur and not fall.